The Wordsmith Dictionary

n.[Gr. , ten and a weight. ] A French weight of ten grams, or 154 grains, 44 decimals, equal to 6 penny weights, and 1 grains, 44 decimals, equal to 5 grams, 63 decimals, avoirdupoise.

DECAGYN

n.[Gr. , ten and female. ] In botany, a plant having ten pistils.

DECAGYNIAN

a.Having ten pistils.

DECAHEDRAL

a.Having ten sides.

DECAHEDRON

n.[Gr. , ten and a base. ] In geometry, a figure or body having ten sides.

DECALITER

n.[Gr. , ten and liter. ] A French measure of capacity, containing ten liters, or 61 .28 cubic inches, equal to two gallons and 64,44231 cubic inches.

DECALOGIST

n.One who explains the decalogue.

DECALOGUE

n.dec'alog. [Gr. , ten and speech. ] The ten commandments or precepts given by God to Moses at mount Sinai, and originally written on two tables of stone.

DECAMETER

n.[Gr. , ten and measure. ] A French measure of length, consisting of ten meters, and equal to 393 English inches, and 71 decimals.

DECAMP

v.i.To remove or depart from a camp; to march off; as, the army decamped at six o'clock.

DECAMPMENT

n.Departure from a camp; a marching off.

DECANAL

a.Pertaining to a deanery.

DECANDER

n.[Gr. , ten and a male. ] In botany, a plant having ten stamens.

DECANDRIAN

a.Having ten stamens.

DECANGULAR

a.[Gr. , ten and angular. ] Having ten angles.

DECANT

v.t.[L., to sing; literally, to throw. ] To pour off gently, as liquor from its sediment; or to pour from one vessel into another; as, to decant wine.

DECANTATION

n.The act of pouring liquor gently from its lees or sediment, or from one vessel into another.

DECANTED

pp. Poured off, or from one vessel into another.

DECANTER

n. 1. A vessel used to decant liquors, or for receiving decanted liquors. A glass vessel or bottle used for holding wine or other liquors, for filling the drinking glasses.
2. One who decants liquors.

DECANTING

ppr. Pouring off, as liquor from its lees, or from one vessel to another.

DECAPITATE

v.t.[L., head. ] To behead; to cut off the head.

DECAPITATION

n.The act of beheading.

DECAPHYLLOUS

a.[Gr. ten and a leaf. ] Having ten leaves.

DECARBONIZE

v.t.To deprive of carbon; as, to decarbonize steel.

DECARBONIZED

pp. Deprived of carbon.

DECARBONIZING

ppr. Depriving of carbon.

DECASTICH

n.[Gr. ten and a verse. ] A poem consisting of ten lines.

DECASTYLE

n.[Gr. ten and a column. ] A building with an ordnance of ten columns in front.

DECAY

v.i.[Fr. dechoir, from L. de and cado, to fall, or decedo.] 1. To pass gradually from a sound, prosperous, or perfect state, to a less perfect state, or towards destruction; to fail; to decline; to be gradually impaired. Our bodies decay in old age; a tree decays; buildings decay; fortunes decay.
2. To become weaker; to fail; as, our strength decays, or hopes decay.

DECAY

v.t.To cause to fail; to impair; to bring to a worse state. Infirmity, that decays the wise, doth ever make better the fool.

DECAY

n. 1. Gradual failure of health, strength, soundness, prosperity, or any species of excellence or perfection; decline to a worse or less perfect state; tendency towards dissolution or extinction; a state of depravation or diminution. Old men feel the decay of the body. We perceive the decay of the faculties in age. We lament the decay of virtue and patriotism in the state. The northern nations invaded the Roman Empire, when in a state of decay.
2. Declension from prosperity; decline of fortune.
If thy brother be waxen poor, and fallen in decay. Leviticus 25:35.
3. Cause of decay.
He that plots to be the only figure among ciphers, is the decay of the whole age.

DECAYED

pp. Having fallen from a good or sound state; impaired; weakened; diminished.

DECAYEDNESS

n.A state of being impaired; decayed state.

DECAYER

n.That which causes decay.

DECAYING

ppr. Failing; declining; passing from a good, prosperous or sound state, to a worse condition; perishing.

DECAYING

n.Decay; decline.

Webster's 1913 Dictionary

DECA-

Dec "a-. Etym: [Cf. Ten. ]

Defn: A prefix, from Gr. de `ka, signifying ten; specifically (Metric System ), a prefix signifying the weight or measure that is ten times the principal unit.

DECACERATA

De *cac `e *ra "ta, n. pl. Etym: [NL. , fr. Gr. de `ka ten + ke `ras a horn. ] (Zoöl.)

Defn: The division of Cephalopoda which includes the squids, cuttlefishes, and others having ten arms or tentacles; -- called also Decapoda. [Written also Decacera.] See Dibranchiata.

DECACHORD; DECACHORDON

Dec "a *chord, Dec `a *chor "don, n. Etym: [Gr. deka `chordos tenstringed;de `ka ten + chordj ` a string. ]

1. An ancient Greek musical instrument of ten strings, resembling the harp.

2. Something consisting of ten parts. W. Watson.

DECACUMINATED

Dec `a *cu "mi *na `ted, a. Etym: [L. decacuminare to cut off the top. See Cacuminate. ]

Defn: Having the point or top cut off. [Obs. ] Bailey.

DECAD

DECAD Dec "ad, n.

Defn: A decade. Averill was a decad and a half his elder. Tennyson.

DECADAL

DECADAL Dec "a *dal, a.

Defn: Pertaining to ten; consisting of tens.

DECADE

Dec "ade, n. Etym: [F. décade, L. decas, -adis, fr. Gr. Ten. ]

Defn: A group or division of ten; esp. , a period of ten years; a decennium; as, a decade of years or days; a decade of soldiers; the second decade of Livy. [Written also decad. ] During this notable decade of years. Gladstone.

DECADENCE; DECADENCY

De *ca "dence, De *ca "den *cy, n. Etym: [LL. decadentia; L. de- + cadere to fall: cf. F. décadence. See Decay. ]

Defn: A falling away; decay; deterioration; declension. "The old castle, where the family lived in their decadence. ' Sir W. Scott.

DECADENT

DECADENT De *ca "dent, a.

Defn: Decaying; deteriorating.

DECADIST

DECADIST Dec "a *dist, n.

Defn: A writer of a book divided into decades; as, Livy was a decadist. [R.]

DECAGON

Dec "a *gon, n. Etym: [Pref. deca- + Gr. décagone. ] (Geom.)

Defn: A plane figure having ten sides and ten angles; any figure having ten angles. A regular decagon is one that has all its sides and angles equal.

DECAGONAL

DECAGONAL De *cag "o *nal, a.

Defn: Pertaining to a decagon; having ten sides.

DECAGRAM; DECAGRAMME

Dec "a *gram, Dec "a *gramme, n. Etym: [F. décagramme; Gr. gramme. See Gram. ]

Defn: A weight of the metric system; ten grams, equal to about 154.32 grains avoirdupois.

DECAGYNIA

Dec `a *gyn "i *a, n. pl. Etym: [NL. , fr. Gr. (Bot. )

Defn: A Linnæan order of plants characterized by having ten styles.

DECAGYNIAN; DECCAGYNOUS

Dec `a *gyn "i *an, Dec *cag "y *nous, a. Etym: [Cf. F. décagyne.] (Bot. )

Defn: Belonging to the Decagynia; having ten styles.

DECAHEDRAL

DECAHEDRAL Dec `a *he "dral, a.

Defn: Having ten sides.

DECAHEDRON

Dec `a *he "dron, n.; pl. E. Decahedrons, L. Decahedra. Etym: [Pref. deca- + Gr. 'e `dra a seat, a base, fr. 'e `zesthai to sit: cf. F. décaèdre.] (Geom.)

Defn: A solid figure or body inclosed by ten plane surfaces. [Written also, less correctly, decaedron.]

DECALCIFICATION

DECALCIFICATION De *cal `ci *fi *ca "tion, n.

Defn: The removal of calcareous matter.

DECALCIFY

De *cal "ci *fy, v. t. [imp. & p. p. Decalcified; p. pr. & vb. n.Decalcifying.]

Defn: To deprive of calcareous matter; thus, to decalcify bones is to remove the stony part, and leave only the gelatin.

DECALCOMANIA; DECALCOMANIE

De *cal `co *ma "ni *a, De *cal `co *ma "nie, n. Etym: [F. décalcomanie.]

Defn: The art or process of transferring pictures and designs to china, glass, marble, etc. , and permanently fixing them thereto.

DECALITER; DECALITRE

Dec "a *li `ter, Dec "a *li `tre, n. Etym: [F. décalitre; Gr. litre. See Liter. ]

Defn: A measure of capacity in the metric system; a cubic volume of ten liters, equal to about 61 .24 cubic inches, that is, 2.642 wine gallons.

DECALOG

DECALOG Dec "a *log, n.

Defn: Decalogue.

DECALOGIST

DECALOGIST De *cal "o *gist, n.

Defn: One who explains the decalogue. J. Gregory.

DECALOGUE

Dec "a *logue, n. Etym: [F. décalogue, L. decalogus, fr. Gr. Ten. ]

Defn: The Ten Commandments or precepts given by God to Moses on Mount Sinai, and originally written on two tables of stone.

DECAMERON

De *cam "e *ron, n. Etym: [It. decamerone, fr. Gr. décaméron.]

Defn: A celebrated collection of tales, supposed to be related in ten days; -- written in the 14th century, by Boccaccio, an Italian.

DECAMETER; DECAMETRE

Dec "a *me `ter, Dec "a *me `tre, n. Etym: [F. décamètre; Gr. mètre. See Meter. ]

Defn: A measure of length in the metric system; ten meters, equal to about 393.7 inches.

DECAMP

De *camp ", v. i. [imp. & p. p. Decamped; p. pr. & vb. n. Decamping.]Etym: [F. décamper; pref. dé - (L. dis ) + camp camp. See Camp. ]

1. To break up a camp; to move away from a camping ground, usually by night or secretly. Macaulay.

2. Hence, to depart suddenly; to run away; -- generally used disparagingly. The fathers were ordered to decamp, and the house was once again converted into a tavern. Goldsmith.

DECAMPMENT

De *camp "ment, n. Etym: [Cf. F. décampement.]

Defn: Departure from a camp; a marching off.

DECANAL

Dec "a *nal, a. Etym: [Cf. F. décanal. See Dean. ]

Defn: Pertaining to a dean or deanery. His rectorial as well as decanal residence. Churton. Decanal side, the side of the choir on which the dean's tall is placed. -- Decanal stall, the stall allotted to the dean in the choir, on the right or south side of the chancel. Shipley.

DECANDRIA

De *can "dri *a, n. pl. Etym: [NL. , fr. Gr. (Bot. )

Defn: A Linnæan class of plants characterized by having ten stamens.

DECANDRIAN; DECANDROUS

De *can "dri *an, De *can "drous, a. Etym: [Cf. F. décandre.] (Bot. )

Defn: Belonging to the Decandria; having ten stamens.

DECANE

Dec "ane, n. Etym: [See Deca-. ] (Chem. )

Defn: A liquid hydrocarbon, C1 H22, of the paraffin series, including several isomeric modifications.

DECANGULAR

Dec *an "gu *lar, a. Etym: [Pref. deca- + angular. ]

Defn: Having ten angles.

DECANI

De *ca "ni, a. Etym: [L., lit. , of the dean. ]

Defn: Used of the side of the choir on which the dean's stall is placed; decanal; -- correlative to cantoris; as, the decanal, or decani, side.

DECANT

De *cant ", v. t. [imp. & p. p. Decanted; p. pr. & vb. n. Decanting. ]Etym: [F. décanter (cf. It. decantare ), prop. , to pour off from the edge of a vessel; pref. dé - (L. de ) + OF. cant (It. canto ) edge, border, end. See Cant an edge. ]

Defn: To pour off gently, as liquor, so as not to disturb the sediment; or to pour from one vessel into another; as, to decant wine.

DECANTATE

DECANTATE De *can "tate, v. t.

Defn: To decant. [Obs. ]

DECANTATION

De `can *ta "tion, n. Etym: [Cf. F. décantation.]

Defn: The act of pouring off a clear liquor gently from its lees or sediment, or from one vessel into another.

DECANTER

DECANTER De *cant "er, n.

1. A vessel used to decant liquors, or for receiving decanted liquors; a kind of glass bottle used for holding wine or other liquors, from which drinking glasses are filled.

2. One who decants liquors.

DECAPHYLLOUS

De *caph "yl *lous, a. Etym: [Pref. deca- + Gr. décaphylle.] (Bot. )

Defn: Having ten leaves.

DECAPITATE

De *cap "i *tate, v. t. [imp. & p. p. Decapitated; p. pr. & vb. n.Decapitating.] Etym: [LL. decapitatus, p. p. of decapitare; L. de- + caput head. See Chief. ]

1. To cut off the head of; to behead.

2. To remove summarily from office. [Colloq. U. S.]

DECAPITATION

De *cap `i *ta "tion, n. Etym: [LL. decapitatio: cf. F. décapitation.]

Defn: The act of beheading; beheading.

DECAPOD

Dec "a *pod, n. Etym: [Cf. F. décapode.] (Zoöl.)

Defn: A crustacean with ten feet or legs, as a crab; one of the Decapoda. Also used adjectively.

DECAPODA

De *cap "o *da, n. pl. Etym: [NL. , fr. Gr.

1. (Zoöl.)

Defn: The order of Crustacea which includes the shrimps, lobsters, crabs, etc.

Note: They have a carapace, covering and uniting the somites of the head and thorax and inclosing a gill chamber on each side, and usually have five (rarely six ) pairs of legs. They are divided into two principal groups: Brachyura and Macrura. Some writers recognize a third (Anomura ) intermediate between the others.

2. (Zoöl.)

Defn: A division of the dibranchiate cephalopods including the cuttlefishes and squids. See Decacera.

DECAPODAL; DECAPODOUS

DECAPODAL; DECAPODOUS Dec *ap "o *dal, Dec *ap "o *dous, a. (Zoöl.)

Defn: Belonging to the decapods; having ten feet; ten-footed.

DECARBONATE

DECARBONATE De *car "bon *ate, v. t.

Defn: To deprive of carbonic acid.

DECARBONIZATION

DECARBONIZATION De *car `bon *i *za "tion, n.

Defn: The action or process of depriving a substance of carbon.

DECARBONIZE

De *car "bon *ize, v. t. [imp. & p. p. Decarbonized; p. pr. & vb. n.Decarbonizing. ]

Defn: To deprive of carbon; as, to decarbonize steel; to decarbonize the blood. Decarbonized iron. See Malleable iron. -- Decarbonized steel, homogenous wrought iron made by a steel process, as that of Bessemer; ingot iron.

DECARBONIZER

DECARBONIZER De *car "bon *i `zer, n.

Defn: He who, or that which, decarbonizes a substance.

DECARBURIZATION

DECARBURIZATION De *car `bu *ri *za "tion, n.

Defn: The act, process, or result of decarburizing.

DECARBURIZE

DECARBURIZE De *car "bu *rize, v. t.

Defn: To deprive of carbon; to remove the carbon from.

DECARD

DECARD De *card ", v. t.

Defn: To discard. [Obs. ] You have cast those by, decarded them. J. Fletcher.

DECARDINALIZE

DECARDINALIZE De *car "di *nal *ize, v. t.

Defn: To depose from the rank of cardinal.

DECASTERE

Dec "a *stere, n. Etym: [L. décastère; Gr. stère a stere. ] (Metric System )

Defn: A measure of capacity, equal to ten steres, or ten cubic meters.

DECASTICH

Dec "a *stich, n. Etym: [Pref. deca- + Gr.

Defn: A poem consisting of ten lines.

DECASTYLE

Dec "a *style, a. Etym: [Gr. (Arch. )

Defn: Having ten columns in front; -- said of a portico, temple, etc. -- n.

Defn: A portico having ten pillars or columns in front.

DECASYLLABIC

Dec `a *syl *lab "ic, a. Etym: [Pref. deca- + syllabic: cf. F.décasyllabique, décasyllable.]

Defn: Having, or consisting of, ten syllables.

DECATHLON

DECATHLON De *cath "lon, n. [See Deca-; Pentathlon. ]

Defn: In the modern Olympic Games, a composite contest consisting of a 1 -meter run, a broad jump, putting the shot, a running high-jump, a 4 -meter run, throwing the discus, a 1 -meter hurdle race, pole vaulting, throwing the javelin, and a 15 -meter run.

DECATOIC

DECATOIC Dec `a *to "ic, a. (Chem. )

Defn: Pertaining to, or derived from, decane.

DECAY

De *cay ", v. i. [imp. & p. p. Decayed; p. pr. & vb. n. Decaying. ]Etym: [OF. decaeir, dechaer, decheoir, F. déchoir, to decline, fall, become less; L. de- + cadere to fall. See Chance. ]

Defn: To pass gradually from a sound, prosperous, or perfect state, to one of imperfection, adversity, or dissolution; to waste away; to decline; to fail; to become weak, corrupt, or disintegrated; to rot; to perish; as, a tree decays; fortunes decay; hopes decay. Ill fares the land, to hastening ills a prey, Where wealth accumulates and men decay. Goldsmith.

DECAY

DECAY De *cay ", v. t.

1. To cause to decay; to impair. [R.] Infirmity, that decays the wise. Shak.

2. To destroy. [Obs. ] Shak.

DECAY

DECAY De *cay ", n.

1. Gradual failure of health, strength, soundness, prosperity, or of any species of excellence or perfection; tendency toward dissolution or extinction; corruption; rottenness; decline; deterioration; as, the decay of the body; the decay of virtue; the decay of the Roman empire; a castle in decay. Perhaps my God, though he be far before, May turn, and take me by the hand, and more -May strengthen my decays. Herbert. His [Johnson's ] failure was not to be ascribed to intellectual decay. Macaulay. Which has caused the decay of the consonants to follow somewhat different laws. James Byrne.

2. Destruction; death. [Obs. ] Spenser.

3. Cause of decay. [R.] He that plots to be the only figure among ciphers, is the decay of the whole age. Bacon.

Syn. -- Decline; consumption. See Decline.

DECAYED

DECAYED De *cayed ", a.

Defn: Fallen, as to physical or social condition; affected with decay; rotten; as, decayed vegetation or vegetables; a decayed fortune or gentleman. -- De *cay "ed *ness, n.

DECAYER

DECAYER De *cay "er, n.

Defn: A causer of decay. [R.]

New American Oxford Dictionary

deca-

deca- |ˈdɛkə |(also dec- before a vowel ) ▶comb. form (used commonly in units of measurement ) ten; having ten: decahedron | decane. ORIGIN from Greek deka ‘ten. ’

decade

dec ade |ˈdekād ˈdɛˌkeɪd | ▶noun 1 a period of ten years: he taught at the university for nearly a decade. • a period of ten years beginning with a year ending in 0 (or, by another reckoning, 1 ): the fourth decade of the nineteenth century. 2 a set, series, or group of ten, in particular: • |ˈdekid ˈdekeɪd |each of the five divisions of each chapter of the rosary. DERIVATIVES dec a dal |ˈdekədl |adjective ORIGIN late Middle English (denoting each of ten parts of a literary work ): via Old French and late Latin from Greek deka ‘ten. ’ Sense 1 dates from the early 17th cent. usage: Note that when decade means ‘a division of the rosary, ’ the pronunciation is distinct: the stress is on dec-, but the second syllable sounds like id, not ade .

decadence

dec a dence |ˈdekədəns ˈdɛkəd (ə )ns | ▶noun moral or cultural decline as characterized by excessive indulgence in pleasure or luxury: he denounced Western decadence. • luxurious self-indulgence: “French ” connotes richness and decadence, and that's the idea of this ice cream. ORIGIN mid 16th cent.: from French décadence, from medieval Latin decadentia; related to decay .

decadent

dec a dent |ˈdekədənt ˈdɛkəd (ə )nt | ▶adjective characterized by or reflecting a state of moral or cultural decline. • luxuriously self-indulgent: a decadent soak in a scented bath. ▶noun a person who is luxuriously self-indulgent. • (often Decadent ) a member of a group of late-19th -cent. French and English poets associated with the Aesthetic Movement. DERIVATIVES dec a dent ly adverb ORIGIN mid 19th cent.: from French décadent, from medieval Latin decadentia (see decadence ).

decaf

de caf |ˈdēˌkaf ˈdikæf | ▶noun informal decaffeinated coffee. ORIGIN 1960s: abbreviation.

decaffeinate

de caf fein ate |dēˈkafəˌnāt diˈkæfəneɪt | ▶verb [ with obj. ] (usu. as adj. decaffeinated ) remove most or all of the caffeine from (coffee or tea ): decaffeinated coffee. DERIVATIVES de caf fein a tion |dēˌkafəˈnāSHən |noun

decagon

dec a gon |ˈdekəˌgän ˈdɛkəˌɡɑn | ▶noun a plane figure with ten straight sides and angles. DERIVATIVES de cag o nal |dəˈkagənl |adjective ORIGIN mid 17th cent.: via medieval Latin from Greek dekagōnon, neuter (used as a noun ) of dekagōnos ‘ten-angled. ’

decagram

dec a gram |ˈdekəˌgram ˈdɛkəɡræm |(also dekagram ) ▶noun a metric unit of mass or weight, equal to 10 grams.

decahedron

decal

de cal |ˈdēkal ˈdiˌkæl | ▶noun a design prepared on special paper for transfer onto another surface such as glass, porcelain, or metal. ORIGIN 1950s: abbreviation of decalcomania .

decalcified

decalcomania

de cal co ma ni a |dēˌkalkəˈmānēə diˌkælkəˈmeɪniə | ▶noun the process of transferring designs from prepared paper onto glass or porcelain. • a technique used by some surrealist artists that involves pressing paint between sheets of paper. ORIGIN mid 19th cent.: from French décalcomanie, from décalquer ‘transfer a tracing ’ + -manie ‘-mania ’ (with reference to the enthusiasm for the process in the 1860s ).

decaliter

dec a li ter |ˈdekəˌlētər ˈdɛkəlidər |(also dekaliter ) (abbr.: dal or dkl ) ▶noun a metric unit of capacity, equal to 10 liters.

Decalogue

Dec a logue |ˈdekəˌlôg, -ˌläg ˈdɛkəlɔɡ | ▶noun (usu. the Decalogue ) the Ten Commandments. ORIGIN late Middle English: via French and ecclesiastical Latin from Greek dekalogos (biblos )‘(book of ) the Ten Commandments, ’ from hoi deka logoi ‘the Ten Commandments ’ (literally ‘the ten sayings ’).

Decameron

De cam er on |diˈkamərən, -ˌrän dəˈkæmərən | a work by Boccaccio, written between 1348 and 1358, containing a hundred tales supposedly told in ten days by a party of ten young people who had fled from the Black Death in Florence. The work was influential on later writers such as Chaucer and Shakespeare.

decameter

dec a me ter |ˈdekəˌmētər ˈdɛkəmidər |(also dekameter ) (abbr.: dam or dkm ) ▶noun a metric unit of length, equal to 10 meters. DERIVATIVES dec a met ric |ˌdekəˈmetrik |adjective

decamp

de camp |diˈkamp dəˈkæmp | ▶verb [ no obj. ] depart suddenly or secretly, esp. to relocate one's business or household in another area: now he has decamped to Hollywood. • archaic break up or leave a military camp: the armies of both chiefs had decamped. DERIVATIVES de camp ment noun ORIGIN late 17th cent.: from French décamper, from dé - (expressing removal ) + camp ‘camp. ’

decan

dec an |ˈdekən ˈdɛkən | ▶noun Astrology each of three equal ten-degree divisions of a sign of the zodiac. ORIGIN late 16th cent.: from late Latin decanus ‘chief of a group of ten ’ (see dean 1 ).

decanal

dec a nal |ˈdekənl, diˈkānl dəˈkeɪnəl | ▶adjective of or relating to a dean or deanery. • relating to or denoting the south side of the choir of a church, the side on which the dean sits. The opposite of cantorial. ORIGIN early 18th cent.: from medieval Latin decanalis, from late Latin decanus (see dean 1 ).

decane

dec ane |ˈdekān ˈdɛkeɪn | ▶noun Chemistry a colorless liquid hydrocarbon of the alkane series, present in petroleum products such as kerosene. [Chem. formula: C 10 H 22; many isomers, esp. the straight-chain isomer ( n -decane ), which is used as a solvent and in jet fuel research. ]

decani

decani |dɪˈkeɪnʌɪ | ▶noun the section of a church or cathedral choir conventionally placed on the south side and taking the first or higher part in antiphonal singing. The opposite of cantoris. ORIGIN mid 18th cent.: from Latin, literally ‘of the dean ’ (see dean 1 ).

decant

de cant |diˈkant dəˈkænt | ▶verb [ with obj. ] gradually pour (liquid, typically wine or a solution ) from one container into another, esp. without disturbing the sediment: the wine was decanted about 40 minutes before being served. ORIGIN mid 17th cent.: from medieval Latin decanthare, from Latin de- ‘away from ’ + canthus ‘edge, rim ’ (used to denote the angular lip of a beaker ), from Greek kanthos ‘corner of the eye. ’

decanter

de cant er |diˈkantər dəˈkæn (t )ər | ▶noun a stoppered glass container into which wine is decanted.

decapitate

de cap i tate |diˈkapiˌtāt dəˈkæpəˌteɪt | ▶verb [ with obj. ] cut off the head of (a person or animal ): (as adj. decapitated ) : a decapitated body. • attempt to undermine (a group or organization ) by removing its leaders: Italy's organized-crime network was decapitated when the godfather of the Sicilian Mafia was arrested. DERIVATIVES de cap i ta tion |diˌkapiˈtāSHən |noun, de cap i ta tor |-ˌtātər |noun ORIGIN early 17th cent.: from late Latin decapitat- ‘decapitated, ’ from the verb decapitare, from de- (expressing removal ) + caput, capit- ‘head. ’

decapitation strike

de cap i ta tion strike ▶noun a debilitating military attack, esp. one aimed at the enemy's leadership.

decapod

dec a pod |ˈdekəˌpäd ˈdɛkəˌpɑd |Zoology ▶noun a crustacean of the order Decapoda, such as a shrimp, crab, or lobster. ▶adjective relating to or denoting decapods.

Decapoda

De cap o da |diˈkapədə dɪˈkæpədə |Zoology 1 an order of crustaceans that includes shrimps, crabs, and lobsters. They have five pairs of walking legs and are typically marine. 2 a former order of cephalopod mollusks that includes squids and cuttlefishes, having eight arms and two long tentacles. Compare with Octopoda. ORIGIN modern Latin (plural ), from deca- ‘ten ’ + Greek pous, pod- ‘foot. ’

decapsulate

de cap su late |dēˈkapso͝oˌlāt diˈkæpsəleɪt | ▶verb [ with obj. ] Surgery remove the capsule or covering from (a kidney or other encapsulated organ ). DERIVATIVES de cap su la tion |dēˌkapso͝oˈlāSHən |noun

decarbonize

de car bon ize |dēˈkärbəˌnīz diˈkɑrbənaɪz | ▶verb [ with obj. ] remove carbon or carbonaceous deposits from (an engine or other metal object ). DERIVATIVES de car bon i za tion |dēˌkärbənəˈzāSHən |noun, de car bon iz er noun

decarboxylase

de car box yl ase |ˌdēkärˈbäksəˌlās, -ˌlāz ˌdikɑrˈbɑksəleɪs | ▶noun Biochemistry an enzyme that catalyzes the decarboxylation of a particular organic molecule.

decarboxylate

de car box yl ate |ˌdēkärˈbäksəˌlāt ˌdikɑrˈbɑksəleɪt | ▶verb [ with obj. ] Chemistry eliminate a carboxylic acid group from (an organic compound ). • [ no obj. ] undergo this process. DERIVATIVES de car box yl a tion |ˌdēkärˌbäksəˈlāSHən |noun

decarburize

de car bu rize |dēˈkärb (y )əˌrīz diˈkɑrbjəraɪz | ▶verb [ with obj. ] Metallurgy remove carbon from (iron or steel ); decarbonize. DERIVATIVES de car bu ri za tion |dēˌkärb (y )ərəˈzāSHən |noun ORIGIN mid 19th cent.: from de- (expressing removal ) + carburize, on the pattern of French décarburer.

decastyle

decastyle |ˈdɛkəstʌɪl |Architecture ▶adjective (of a temple or portico ) having ten columns. ▶noun a ten-columned portico. ORIGIN early 18th cent.: from Greek dekastulos ‘having ten columns ’, from deka ‘ten ’ + stulos ‘column ’.

decasyllabic

dec a syl lab ic |ˌdekəsiˈlabik ˈdɛkəsɪˈˌlæbɪk |Prosody ▶adjective (of a metrical line ) consisting of ten syllables. ▶noun (also decasyllable ) a metrical line of ten syllables.

decathlon

de cath lon |diˈkaTH (ə )ˌlän dəˈkæθ (ə )lən | ▶noun an athletic event taking place over two days, in which each competitor takes part in the same prescribed ten events (100 -meter dash, long jump, shot put, high jump, 400 -meter dash, 110 -meter hurdles, discus, pole vault, javelin, and 1,500 -meter run ). DERIVATIVES de cath lete |-ˈkaTH (ə )ˌlēt |noun ORIGIN early 20th cent.: from deca- ‘ten ’ + Greek athlon ‘contest. ’

Decatur

De ca tur |diˈkātər dɪˈkeɪtər | 1 an industrial city in northern Alabama, on the Tennessee River; pop. 56,068 (est. 2008 ). 2 an industrial and commercial city in central Illinois; pop. 76,256 (est. 2008 ).

Decatur, Stephen

De ca tur, Stephen |diˈkātər dɪˈkeɪtər | (1779 –1820 ), US naval officer. He was a daring commander in the Barbary Wars (1803 –04 and 1815 ), and the War of 1812. He is noted for his well-known toast, “Our country! In her intercourse with foreign nations may she always be in the right; but our country, right or wrong! ”

decay

de cay |diˈkā dəˈkeɪ | ▶verb [ no obj. ] (of organic matter ) rot or decompose through the action of bacteria and fungi: (as adj. decayed ) : a decayed cabbage leaf | (as adj. decaying ) : the odor of decaying fish. • [ with obj. ] cause to rot or decompose: the fungus will decay soft timber. • (of a building or area ) fall into disrepair; deteriorate: urban neighborhoods decay when elevated freeways replace surface roads. • decline in quality, power, or vigor: the moral authority of the party was decaying. • Physics (of a radioactive substance, particle, etc. ) undergo change to a different form by emitting radiation: the trapped radiocarbon begins to decay at a known rate. • technical (of a physical quantity ) undergo a gradual decrease: the time taken for the current to decay to zero. ▶noun the state or process of rotting or decomposition: hardwood is more resistant to decay than softwood | tooth decay. • structural or physical deterioration: the old barn rapidly fell into decay . • rotten matter or tissue: fluoride heals small spots of decay. • the process of declining in quality, power, or vigor: preachers warning of moral decay. • Physics the change of a radioactive substance, particle, etc. , into another by the emission of radiation: the gas radon is produced by the decay of uranium in rocks and soil. • technical gradual decrease in the magnitude of a physical quantity: the decay of electrical fields in the electromagnets. ORIGIN late Middle English: from Old French decair, based on Latin decidere ‘fall down or off, ’ from de- ‘from ’ + cadere ‘fall. ’

Oxford Dictionary

deca-

deca- |ˈdɛkə |(also dec- before a vowel ) ▶combining form (used commonly in units of measurement ) ten; having ten: decahedron | decane. ORIGIN from Greek deka ‘ten ’.

decade

decade |ˈdɛkeɪd, dɪˈkeɪd | ▶noun 1 a period of ten years. • a period of ten years beginning with a year ending in 0. 2 each of the five divisions of each chapter of the rosary. 3 a range of electrical resistances, frequencies, or other quantities spanning from one to ten times a base value. DERIVATIVES decadal adjective ORIGIN late Middle English (denoting each of ten parts of a literary work ): via Old French and late Latin from Greek deka ‘ten ’. Sense 1 dates from the early 17th cent. usage: There are two possible pronunciations for decade: one puts the stress on the dec- while the other puts the stress on the -cade (sounds like decayed ). The second pronunciation is disapproved of by some traditionalists but is now regarded as a standard, acceptable alternative.

decadence

decadence |ˈdɛkəd (ə )ns | ▶noun [ mass noun ] moral or cultural decline as characterized by excessive indulgence in pleasure or luxury: he denounced Western decadence. • luxurious self-indulgence: cream cakes on a Wednesday —pure decadence. ORIGIN mid 16th cent.: from French décadence, from medieval Latin decadentia; related to decay .

decadent

deca |dent |ˈdɛkəd (ə )nt | ▶adjective characterized by or reflecting a state of moral or cultural decline. • luxuriously self-indulgent: a decadent soak in a scented bath. ▶noun a person who is luxuriously self-indulgent. • (often Decadent ) a member of a group of late 19th -century French and English poets associated with the Aesthetic Movement. DERIVATIVES decadently adverb ORIGIN mid 19th cent.: from French décadent, from medieval Latin decadentia (see decadence ).

decaf

decaf |ˈdiːkaf |(also decaff ) ▶noun [ mass noun ] informal ( trademark in the UK ) decaffeinated coffee. ORIGIN 1960s: abbreviation.

decaffeinated

decaffeinated |diːˈkafɪneɪtɪd | ▶adjective (of coffee or tea ) having had most or all of the caffeine removed. DERIVATIVES decaffeinate verb, decaffeination noun

decagon

decagon |ˈdɛkəg (ə )n | ▶noun a plane figure with ten straight sides and angles. DERIVATIVES decagonal |dɪˈkag (ə )n (ə )l |adjective ORIGIN mid 17th cent.: via medieval Latin from Greek dekagōnon, neuter (used as a noun ) of dekagōnos ‘ten-angled ’.

decagram

dec a gram |ˈdekəˌgram ˈdɛkəɡræm |(also dekagram ) ▶noun a metric unit of mass or weight, equal to 10 grams.

decahedron

decahedron |ˌdɛkəˈhiːdr (ə )n, -ˈhɛd -| ▶noun ( pl. decahedra |-drə | or decahedrons ) a solid figure with ten plane faces. DERIVATIVES decahedral adjective ORIGIN early 19th cent.: from deca- ‘ten ’ + -hedron, on the pattern of words such as polyhedron .

decal

decal |ˈdiːkal | ▶noun a design prepared on special paper for durable transfer on to another surface such as glass or porcelain. ORIGIN 1950s: abbreviation of decalcomania .

decalcified

decalcomania

decalcomania |dɪˌkalkə (ʊ )ˈmeɪnɪə | ▶noun [ mass noun ] the process of transferring designs from prepared paper on to glass or porcelain. • a technique used by some surrealist artists which involves pressing paint between sheets of paper. ORIGIN mid 19th cent.: from French décalcomanie, from décalquer ‘transfer a tracing ’ + -manie ‘-mania ’ (with reference to the enthusiasm for the process in the 1860s ).

decalitre

decalitre |ˈdɛkəliːtə |(US decaliter, dekaliter ) (abbrev.: dal; US also dkl ) ▶noun a metric unit of capacity, equal to 10 litres.

Decalogue

Decalogue |ˈdɛkəlɒg | ▶noun (the Decalogue ) the Ten Commandments. ORIGIN late Middle English: via French and ecclesiastical Latin from Greek dekalogos (biblos ) ‘(book of ) the Ten Commandments ’, from hoi deka logoi ‘the Ten Commandments ’ (literally ‘the ten sayings ’).

Decameron

Decameron |dɪˈkamərən | a work by Boccaccio, written between 1348 and 1358, containing a hundred tales supposedly told in ten days by a party of ten young people who had fled from the Black Death in Florence. The work was influential on later writers such as Chaucer and Shakespeare.

decametre

decametre |ˈdɛkəmiːtə |(US decameter, dekameter ) (abbrev.: dam; US also dkm ) ▶noun a metric unit of length, equal to 10 metres. DERIVATIVES decametric adjective

decamp

de ¦camp |dɪˈkamp | ▶verb [ no obj. ] 1 leave a place suddenly or secretly: now he has decamped to Hollywood. 2 break up or leave a military camp. DERIVATIVES decampment noun ORIGIN late 17th cent.: from French décamper, from dé - (expressing removal ) + camp ‘camp ’.

decan

decan |ˈdɛk (ə )n | ▶noun Astrology each of three equal ten-degree divisions of a sign of the zodiac. ORIGIN late 16th cent.: from late Latin decanus ‘chief of a group of ten ’ (see dean 1 ).

decanal

decanal |dɪˈkeɪn (ə )l, ˈdɛk (ə )n (ə )l | ▶adjective relating to a dean or deanery. • relating to or denoting the south side of the choir of a church, the side on which the dean sits. The opposite of cantorial. ORIGIN early 18th cent.: from medieval Latin decanalis, from late Latin decanus (see dean 1 ).

decane

decane |ˈdɛkeɪn | ▶noun [ mass noun ] Chemistry a colourless liquid hydrocarbon of the alkane series, present in petroleum spirit. ●Chem. formula: C 10 H 22.

decani

decant

decant |dɪˈkant | ▶verb [ with obj. ] gradually pour (wine, port, or another liquid ) from one container into another, typically in order to separate out sediment: he decanted the rich red liquid into some glasses. • Brit. temporarily transfer (people ) to another place: tour coaches decant eager customers directly into the store. ORIGIN mid 17th cent.: from medieval Latin decanthare, from Latin de- ‘away from ’ + canthus ‘edge, rim ’ (used to denote the angular lip of a beaker ), from Greek kanthos ‘corner of the eye ’.

decanter

de |cant ¦er |dɪˈkantə | ▶noun a stoppered glass container into which wine or spirit is decanted.

decapitate

decapitate |dɪˈkapɪteɪt | ▶verb [ with obj. ] cut off the head of (someone ): (as adj. decapitated ) : a decapitated body. • attempt to undermine (a group or organization ) by removing its leaders: the Church had been decapitated by the arrest and deportation of all its bishops. DERIVATIVES decapitation |-ˈteɪʃ (ə )n |noun, decapitator noun ORIGIN early 17th cent.: from late Latin decapitat- ‘decapitated ’, from the verb decapitare, from de- (expressing removal ) + caput, capit- ‘head ’.

decapitation strike

de cap i ta tion strike ▶noun a debilitating military attack, esp. one aimed at the enemy's leadership.

decapod

decapod |ˈdɛkəpɒd |Zoology ▶noun a crustacean of the order Decapoda, such as a shrimp, crab, or lobster. ▶adjective relating to or denoting decapods.

Decapoda

Decapoda |ˌdɛkəˈpəʊdə | ▶plural noun Zoology 1 an order of crustaceans which includes shrimps, crabs, and lobsters. They have five pairs of walking legs and are typically marine. 2 a former order of cephalopod molluscs which includes squids and cuttlefishes, which have eight arms and two long tentacles. Compare with Octopoda. ORIGIN modern Latin (plural ), from deca- ‘ten ’ + Greek pous, pod- ‘foot ’.

decapsulate

de |cap ¦su |late |diːˈkapsjʊleɪt | ▶verb [ with obj. ] Surgery remove the capsule or covering from (a kidney or other organ ).DERIVATIVES decapsulation noun

decarbonize

decarbonize |diːˈkɑːb (ə )nʌɪz |(also decarbonise ) ▶verb [ with obj. ] reduce the amount of gaseous carbon compounds released in or as a result of (an environment or process ): policies to decarbonize the UK economy. • remove carbon or carbonaceous deposits from (an engine or other metal object ). DERIVATIVES decarbonization |-ˈzeɪʃ (ə )n |noun, decarbonizer noun

decarboxylase

decarboxylase |ˌdiːkɑːˈbɒksɪleɪz | ▶noun Biochemistry an enzyme that catalyses the decarboxylation of a particular organic molecule.

decarboxylate

decarboxylate |ˌdiːkɑːˈbɒksɪleɪt | ▶verb [ with obj. ] Chemistry eliminate a carboxylic acid group from (an organic compound ). • [ no obj. ] undergo the process of decarboxylation: unstable carbamic acid decarboxylates to yield the amine. DERIVATIVES decarboxylation noun

decarburize

decarburize |diːˈkɑːbjʊrʌɪz |(also decarburise ) ▶verb [ with obj. ] Metallurgy remove carbon from (iron or steel ). DERIVATIVES decarburization noun ORIGIN mid 19th cent.: from de- (expressing removal ) + carburize, on the pattern of French décarburer.

decastyle

decasyllabic

decasyllabic |ˌdɛkəsɪˈlabɪk | ▶adjective Prosody (of a metrical line ) consisting of ten syllables.

decasyllable

deca |syl ¦lable |ˈdɛkəˌsɪləb (ə )l | ▶noun a metrical line of ten syllables.

decathlon

decathlon |dɪˈkaθlɒn, -lən | ▶noun an athletic event taking place over two days, in which each competitor takes part in the same prescribed ten events (100 metres sprint, long jump, shot-put, high jump, 400 metres, 110 metres hurdles, discus, pole vault, javelin, and 1,500 metres ). DERIVATIVES decathlete |-liːt |noun ORIGIN early 20th cent.: from deca- ‘ten ’ + Greek athlon ‘contest ’.

Decatur

Decatur, Stephen

decay

decay |dɪˈkeɪ | ▶verb [ no obj. ] (of organic matter ) rot or decompose through the action of bacteria and fungi: the body had begun to decay | (as adj. decayed ) : decayed animal and plant matter | (as adj. decaying ) : the odour of decaying fish. • [ with obj. ] cause to rot or decompose: the fungus will decay soft timber. • fall into disrepair; deteriorate: facilities decay when money is not spent on refurbishment. • decline in quality, power, or vigour: the moral authority of the party was decaying. • Physics (of a radioactive substance, particle, etc. ) undergo change to a different form by emitting radiation. • technical (of a physical quantity ) undergo a gradual decrease. ▶noun [ mass noun ] the state or process of rotting or decomposition: hardwood is more resistant to decay than softwood | tooth decay. • rotten matter or tissue: fluoride heals small spots of decay. • structural or physical deterioration: the old barn rapidly fell into decay . • the process of declining in quality, power, or vigour: the problems of urban decay. • Physics the change of a radioactive substance, particle, etc. into another by the emission of radiation. • technical gradual decrease in the magnitude of a physical quantity. ORIGIN late Middle English: from Old French decair, based on Latin decidere ‘fall down or off ’, from de- ‘from ’ + cadere ‘fall ’.

American Oxford Thesaurus

decadence

decadence noun 1 the decadence of modern society: dissipation, degeneracy, debauchery, corruption, depravity, vice, sin, moral decay, immorality; immoderateness, intemperance, licentiousness, self-indulgence, hedonism. ANTONYMS morality. 2 the decadence of nations: deterioration, fall, decay, degeneration, decline, degradation, retrogression. ANTONYMS rise.

decadent

decadent adjective 1 decadent city life: dissolute, dissipated, degenerate, corrupt, depraved, sinful, unprincipled, immoral; licentious, abandoned, profligate, intemperate; sybaritic, hedonistic, pleasure-seeking, self-indulgent. 2 the decadent empire: declining, decaying, ebbing, degenerating, deteriorating.

decamp

decamp verb 1 he decamped with the profits: abscond, make off, run off /away, flee, bolt, take flight, disappear, vanish, steal away, sneak away, escape, make a run for it, leave, depart; informal split, scram, vamoose, cut and run, do a disappearing act, head for the hills, go AWOL, take a powder, go on the lam. 2 archaic the armies decamped: strike one's tents, break camp, move on.

decant

decant verb the wine was decanted into a flask: pour off, draw off, siphon off, drain, tap; transfer.

decapitate

decapitate verb traitors were publicly decapitated: behead, guillotine, put on the block.

decay

decay verb 1 the corpses had decayed: decompose, rot, putrefy, go bad, go off, spoil, fester, perish, deteriorate; degrade, break down, molder, shrivel, wither. 2 the cities continue to decay: deteriorate, degenerate, decline, go downhill, slump, slide, go to rack and ruin, go to seed; disintegrate, fall to pieces, fall into disrepair; fail, collapse; informal go to pot, go to the dogs, go into /down the toilet. ▶noun 1 signs of decay: decomposition, putrefaction, festering; rot, mold, mildew, fungus. 2 tooth decay: rot, corrosion, decomposition; caries, cavities, holes. 3 the decay of contemporary culture: deterioration, degeneration, debasement, degradation, decline, weakening, atrophy; crumbling, disintegration, collapse.

decayed

decayed adjective a decayed deer carcass: decomposed, decomposing, rotten, putrescent, putrid, bad, off, spoiled, far gone, perished; moldy, festering, fetid, rancid, rank; maggoty, wormy.

decaying

decaying adjective 1 decaying fish: decomposing, decomposed, rotting, rotten, putrescent, putrid, bad, off, perished; moldy, festering, fetid, rancid, rank; maggoty, wormy. 2 a decaying city: declining, degenerating, dying, crumbling, disintegrating; derelict, run-down, tumbledown, ramshackle, shabby, decrepit; in decline, in ruins, on the way out. WORD TOOLKIT See derelict . Word Toolkits illustrate the difference between close synonyms by means of words typically used with them.

Oxford Thesaurus

decadence

decadence noun he attacked the decadence of modern society: dissipation, dissoluteness, degeneracy, debauchery, corruption, depravity, loucheness, vice, sinfulness, perversion, moral decay, immorality, lack of morals, lack of principles, lack of restraint, lack of control, lack of self-control, immoderateness, intemperance, licentiousness, wantonness, self-indulgence, hedonism, epicureanism; rare sybaritism, voluptuousness. ANTONYMS morality.

decadent

decadent adjective he turned his back on decadent city life: dissolute, dissipated, degenerate, corrupt, depraved, louche, rakish, shameless, sinful, unprincipled, immoral, licentious, wanton, abandoned, unrestrained, profligate, intemperate; sybaritic, voluptuary, epicurean, hedonistic, pleasure-seeking, indulgent, self-indulgent. ANTONYMS moral.

decamp

decamp verb 1 he sold their paintings and decamped with the proceeds: abscond, make off, run off, run away, flee, bolt, take off, take flight, disappear, vanish, slip away, steal away, sneak away, beat a hasty retreat, escape, make a run for it, make one's getaway, leave, depart, make oneself scarce; informal split, scram, skedaddle, vamoose, skip, cut and run, make tracks, push off, shove off, clear off, hightail it, hotfoot it, show a clean pair of heels, do a bunk, do a runner, do a moonlight flit, do a disappearing act, head for the hills, fly the coop, take French leave, go AWOL; Brit. informal scarper; N. Amer. informal take a powder, go on the lam, light out, bug out, peel out, cut out; Brit. informal, dated hook it. ANTONYMS return. 2 archaic the armies of both chiefs had decamped: strike one's tents, break camp, move on. ANTONYMS encamp.

decant

decant verb the wine was decanted into a clean flask: pour out, pour off, draw off, siphon off, drain, tap, tip, discharge, transfer.

decapitate

decapitate verb he was found guilty of high treason and decapitated: behead, cut off the head of, guillotine, put on the block; archaic decollate.

decay

decay verb 1 the flesh of the corpses had decayed: decompose, rot, putrefy, go bad, go off, spoil, fester, perish, deteriorate; degrade, break down, break up, moulder, shrivel, shrivel up, wither; technical mortify, necrotize, sphacelate; archaic corrupt. 2 the inner cities in Britain continue to decay: deteriorate, degenerate, decline, go downhill, slump, slip, slide, go to rack and ruin, go to seed, run to seed, worsen, crumble, disintegrate, fall to pieces, come apart at the seams, fall into disrepair, become dilapidated; fail, wane, ebb, dwindle, collapse; informal go to pot, go to the dogs, hit the skids, go down the tubes, go down the toilet; Austral. /NZ informal go to the pack. ANTONYMS improve. ▶noun 1 the fish showed no signs of decay: decomposition, rotting, going bad, putrefaction, putrescence, putridity, festering, spoilage, perishing, withering, shrivelling; rot, mould, mildew, fungus; archaic corruption. 2 consumption of sugar can lead to tooth decay: rot, rotting, corrosion, corroding, decomposition; caries, cavities, holes; rare cariosity. 3 they blame TV for the decay of American values: deterioration, degeneration, debasement, degradation, decline, slipping, waning, ebb, shrinking, withering, weakening, atrophy, crumbling, disintegration, collapse, lapse, fall, failure; formal devolution; dated decadence. ANTONYMS improvement. WORD LINKS decay sapro- related prefix, as in saprophagous Word Links sections supply words that are related to the headword but do not normally appear in a thesaurus because they are not actual synonyms.

decayed

decayed adjective she discovered his decayed body: decomposed, decomposing, rotten, rotting, putrescent, putrid, bad, off, spoiled, spoilt, perished; mouldy, mouldering, mildewy, festering, fetid, stinking, smelly, rancid, rank; maggoty, worm-eaten, wormy, flyblown.

decaying

decaying adjective 1 the decaying bodies of fish filled the pond: decomposing, decomposed, rotting, rotten, putrescent, putrid, bad, off, spoiled, spoilt, perished; mouldy, mouldering, festering, fetid, stinking, smelly, rancid, rank; maggoty, worm-eaten, wormy, flyblown. 2 Liverpool was a visibly decaying city: declining, degenerating, dying, waning, crumbling, collapsing; run down, broken-down, tumbledown, ramshackle, shabby, battered, decrepit; in decline, on the decline, in ruins, in (a state of ) disrepair, falling apart, falling to pieces; informal on its last legs, on the way out. WORD TOOLKIT decaying See derelict . Word Toolkits illustrate the difference between close synonyms by means of words typically used with them.

Duden Dictionary

Decamerone

De c a me ro ne Substantiv, maskulin oder Substantiv, Neutrum , der oder das |Decamer o ne |griechisch-italienisch Dekameron

Decay

De cay Substantiv, Neutrum , das |diˈkeɪ |englisch Zeit des Abfallens des Tons vom Maximum bis 0 beim Synthesizer

French Dictionary

deçà

deçà adv. adverbe vieux De ce côté -ci (par opposition à delà ). : La route était coupée; ils durent s ’arrêter en deçà. LOCUTIONS Deçà, delà. Çà et là, au hasard. En deçà de De ce côté -ci. : Il pêche en deçà de la rivière. En deçà de locution prépositive figuré Au-dessous de. : La population de la ville est en deçà de sept millions. Rester en deçà de la vérité. figuré Dire moins que la vérité. Note Technique La locution prépositive s ’écrit sans trait d ’union. Note Orthographique de çà.

déca

déca n. m. nom masculin Abréviation familière de café décaféiné. : Des décas.

déca-

déca - préf. préfixe Symbole da (s ’écrit sans point ). Préfixe qui multiplie par 10 l ’unité qu ’il précède. : Des décasecondes. Note Technique Sa notation scientifique est 10 1 .

décachetage

décachetage n. m. nom masculin Action de décacheter. : Le décachetage d ’une lettre.

décacheter

décacheter v. tr. verbe transitif Ouvrir (ce qui est cacheté ). : Elle décachette l ’enveloppe. appeler Conjugaison Redoublement du t devant un e muet. Je décachette, je décachetterai, mais je décachetais.

décade

décade n. f. nom féminin Période de dix jours. Note Sémantique Ne pas confondre avec le nom décennie, période de dix ans.

décadence

décadence n. f. nom féminin Déclin, commencement de la ruine. : La décadence des Romains.

décadent

décadent , ente adj. et n. m. et f. adjectif et nom masculin et féminin Qui est en décadence. : Une fin de siècle décadente.

décaféiné

décaféiné , ée adj. et n. m. adjectif Dont on a enlevé la caféine. : Un café décaféiné. nom masculin Café décaféiné. : Ce décaféiné ne m ’empêchera pas de dormir. Note Technique Cette expression est familièrement abrégée en déca.

décaféiner

décaféiner v. tr. verbe transitif Enlever la caféine. aimer

décagone

décagone n. m. nom masculin Polygone qui a dix angles et dix côtés.

décagramme

décagramme n. m. nom masculin Symbole dag (s ’écrit sans point ).

décaissement

décaissement n. m. nom masculin Sortie de fonds. : Des décaissements importants. SYNONYME débours .

décaisser

décaisser v. tr. verbe transitif Sortir des fonds d ’une caisse. : Décaisser une petite somme d ’argent. ANTONYME encaisser . aimer

décalage

décalage n. m. nom masculin 1 Écart dans le temps ou dans l ’espace. : Le décalage entre Montréal et Paris est de six heures. Il y a un léger décalage entre le cadre et l ’illustration. 2 figuré Défaut de correspondance entre des éléments. : Il y a un décalage important entre les thèses de ces historiens. SYNONYME écart .

décalcification

décalcification n. f. nom féminin Diminution du calcium. : La décalcification des os.

décalcifier

décalcifier v. tr. , pronom. verbe transitif Priver un organisme d ’une partie de son calcium. verbe pronominal Être atteint de décalcification. : Ses os se décalcifient. Note Grammaticale À la forme pronominale, le participe passé de ce verbe s ’accorde toujours en genre et en nombre avec son sujet. Ses dents se sont décalcifiées. étudier Conjugaison Redoublement du i à la première et à la deuxième personne du pluriel de l'indicatif imparfait et du subjonctif présent. (Que ) nous décalcifiions, (que ) vous décalcifiiez.

décalcomanie

décalcomanie n. f. nom féminin 1 Procédé grâce auquel un dessin est transposé d ’une feuille à un objet. 2 La feuille comportant un tel dessin. : Poser des décalcomanies sur un cartable. Note Sémantique Ne pas confondre avec le nom décalque, dessin copié à l ’aide d ’un transparent.

décalé

décalé , ée adj. adjectif Qui n ’est pas en harmonie avec la réalité présente. SYNONYME déphasé .

décaler

décaler v. tr. verbe transitif Déplacer dans le temps ou dans l ’espace. : On a décalé les travaux d ’une semaine. Le jardinier décale les rosiers de façon irrégulière. aimer

décalitre

décalitre n. m. nom masculin Symbole dal (s ’écrit sans point ). Mesure de capacité valant dix litres.

décalquage

décalquage n. m. nom masculin Action de décalquer. : Le décalquage d ’un plan. Note Orthographique décal qua ge.

décalque

décalque n. m. nom masculin Dessin copié à l ’aide d ’un transparent. Note Sémantique Ne pas confondre avec le nom décalcomanie, procédé grâce auquel un dessin est transposé d ’une feuille à un objet, ou la feuille comportant un tel dessin.

décalquer

décalquer v. tr. verbe transitif Reporter le calque d ’un dessin sur un papier transparent. : Décalquer le croquis d ’un paysage. Note Sémantique Ne pas confondre avec le verbe calquer, reproduire au moyen d ’un papier transparent. aimer

décamètre

décamètre n. m. nom masculin Symbole dam (s ’écrit sans point ). Mesure de longueur valant dix mètres.

décamper

décamper v. intr. verbe intransitif familier S ’enfuir précipitamment. : Le cambrioleur a décampé. SYNONYME déguerpir ; fuir ; sauver . Note Grammaticale Ce verbe se conjugue généralement avec l ’auxiliaire avoir. aimer

décan

décan n. m. nom masculin Subdivision du signe du zodiaque. Note Orthographique déc an.

décantation

décantation n. f. nom féminin Action de décanter; fait de se décanter. : La décantation du vin.

décanter

décanter v. tr. , pronom. verbe transitif 1 Débarrasser un liquide de ses impuretés. : Cet ouvrage explique comment décanter le vin. Une carafe à décanter. 2 figuré Épurer, éclaircir. : Décanter ses idées. verbe pronominal S ’épurer. : Ces vins se sont décantés peu à peu. SYNONYME éclaircir . Note Grammaticale À la forme pronominale, le participe passé de ce verbe s ’accorde toujours en genre et en nombre avec son sujet. Ces jus s ’étaient décantés tout à fait. aimer

décapage

décapage n. m. nom masculin Action de décaper; son résultat. : Le décapage d ’un meuble.

décapant

décapant , ante adj. et n. m. adjectif 1 Qui décape. : Des produits décapants. 2 figuré Caustique, stimulant. : Un humour décapant. nom masculin Produit servant au décapage. : Des décapants efficaces. Note Sémantique Ne pas confondre avec le participe présent invariable décapant. Nous aurons besoin de produits décapant le vernis et la peinture.

décaper

décaper v. tr. verbe transitif Nettoyer la surface d ’une matière en grattant la peinture, le vernis, etc. : Décaper des boiseries. aimer Note Orthographique déca p er.

décapeuse

décapeuse n. f. nom féminin Engin de terrassement qui fait de l ’excavation, du transport de matériaux. Note Technique Ce nom a fait l ’objet d ’une recommandation officielle pour remplacer l ’anglicisme scraper.

décapitation

décapitation n. f. nom féminin Action de décapiter. : La décapitation de Louis XVI.

décapiter

décapiter v. tr. verbe transitif 1 Couper la tête de quelqu ’un. : On décapita la reine Marie-Antoinette en 1793. 2 figuré Priver une entreprise, un organisme, un groupe de sa direction. aimer

décapotable

décapotable adj. et n. f. adjectif Dont on peut retirer la capote. : Une voiture décapotable. nom féminin Automobile décapotable. : Martine rêve d ’une décapotable.

décapoter

décapoter v. tr. verbe transitif Enlever la capote de. : Ne décapote pas ton cabriolet: il va pleuvoir! aimer

décapsulage

décapsulage n. m. nom masculin Action de décapsuler.

décapsuler

décapsuler v. tr. verbe transitif Enlever la capsule d ’une bouteille. : Étienne décapsule une bouteille d ’eau minérale. Note Sémantique Ne pas confondre avec le verbe déboucher, enlever le bouchon. aimer

décapsuleur

décapsuleur n. m. nom masculin Instrument servant à enlever les capsules de bouteilles. SYNONYME ouvre-bouteille .

décapuchonner

décapuchonner v. tr. , pronom. verbe transitif Retirer le capuchon de quelqu ’un, de quelque chose. : Elle décapuchonne son enfant, qui vient de rentrer. Décapuchonner un stylo. Retirer son capuchon. Note Grammaticale À la forme pronominale, le participe passé de ce verbe s ’accorde toujours en genre et en nombre avec son sujet. Elles se sont décapuchonnées. aimer

décarcasser (se)

décarcasser (se ) v. pronom. verbe pronominal familier Se donner du mal pour parvenir à un résultat. : Elle s ’est décarcassée pour arriver à ses fins. SYNONYME démener . Note Grammaticale Le participe passé de ce verbe, qui n ’existe qu ’à la forme pronominale, s ’accorde toujours en genre et en nombre avec son sujet. Ils se sont vraiment décarcassés pour nous. aimer

décathlon

décathlon n. m. nom masculin Compétition sportive comportant dix épreuves (saut en longueur, saut en hauteur, saut à la perche, 100 mètres, 400 mètres, 1500 mètres, 100 mètres haies, lancer du disque, du javelot, du poids ). Note Technique Ce mot est formé avec le préfixe déca - du grec « deka », signifiant « dix », d ’après le nom pentathlon du grec « penta » et « athlos », signifiant « cinq » et « combat ». Note Orthographique déca th lon.

décathlonien

décathlonien , ienne n. m. et f. nom masculin et féminin Athlète qui participe à un décathlon.

décati

décati , ie adj. adjectif Qui a perdu son apprêt, son lustre (pour une étoffe ) et par extension, sa fraîcheur. : Une poupée décatie.

décatir

décatir v. tr. , pronom. verbe transitif Enlever le lustre d ’une étoffe. verbe pronominal Perdre son lustre, sa fraîcheur; vieillir. Note Grammaticale À la forme pronominale, le participe passé de ce verbe s ’accorde toujours en genre et en nombre avec son sujet. Cette étoffe s ’est décatie. finir

Spanish Dictionary

deca-

deca- Elemento prefijal de origen griego que entra en la formación de nombres y adjetivos con el significado de ‘diez ’:decagramo, decaedro, decalitro, decálogo, decápodo .

década

década nombre femenino Período de diez años referido a las decenas de siglo :la década de los sesenta .

decadencia

decadencia nombre femenino 1 Pérdida progresiva de la fuerza, intensidad, importancia o perfección de una cosa o una persona :la decadencia del comunismo; sus últimas actuaciones marcaron la decadencia de su carrera .SINÓNIMO declinación, declive .2 Período histórico en el que un movimiento artístico o cultural, un estado, una sociedad, etc. , va perdiendo la fuerza o los valores que lo constituyen y se debilita hasta desintegrarse :la decadencia del canto gregoriano abarca una larga etapa que va desde el siglo xiii hasta el xix .3 Decaimiento de una persona :en estas fotos se puede apreciar la decadencia física y moral de los afectados .ETIMOLOGÍA Préstamo (s. xvi ) del francés décadence y este del latín decadentia, derivado con sentido figurado del latín vulgar decadere (clásico decidere ) ‘caer de ’. De la familia etimológica de caer (V.).

decadente

decadente adjetivo 1 Que está en un proceso o un período de decadencia :su piel brilla, lechosa y obscenamente blanca, y se le marcan las costillas en el cuerpo decadente; fue la etapa más angustiosa y decadente de su historia .2 Que sigue una estética o un estilo que se basa en gustos y costumbres pasados de moda y refinados :un bar decadente .3 adjetivo /nombre común Decadentista :el estilo decadente se caracteriza por un refinamiento excesivo .

decadentismo

decadentismo nombre masculino Escuela literaria y artística de fines del siglo xix que se caracteriza por el escepticismo de sus temas y la propensión a un refinamiento exagerado .

decadentista

decadentista adjetivo /nombre común 1 [persona ] Que es partidario del decadentismo .SINÓNIMO decadente .2 adjetivo Del decadentismo o relacionado con él .

decaedro

decaedro nombre masculino Cuerpo geométrico de diez caras .ETIMOLOGÍA Formado con el griego déka ‘diez ’, del mismo origen que el latín decem ‘diez ’, y hédra ‘asiento, base de un cuerpo ’. De la familia etimológica de diez (V.).

decaer

decaer verbo intransitivo 1 Perder [una cosa o una persona ] fuerza, intensidad, importancia o perfección y pasar a un estado de imperfección o fuerza o vigor escasos :ha decaído tu afán por el deporte; ¡que no decaiga la fiesta! ; con la llegada de la nueva dinastía, el interés literario de los monarcas decayó considerablemente; su llanto volvía a decaer enseguida en congoja .2 mar Separarse [la embarcación ] de su rumbo, arrastrada por el viento, la marejada o la corriente . Conjugación [67 ] como caer .

decagonal

decagonal adjetivo 1 Del decágono o relacionado con él .2 Que tiene forma de decágono .

decágono

decágono nombre masculino Figura geométrica plana de diez lados .ETIMOLOGÍA Formado con el griego déka ‘diez ’, del mismo origen que el latín decem ‘diez ’, y gonía ‘ángulo ’. De la familia etimológica de diez (V.).

decagramo

decagramo nombre masculino Medida de masa, de símbolo dag o Dg , que es igual a 10 gramos .

decaído, -da

decaído, -da adjetivo 1 Que se halla en decadencia :sus obras ejercieron un notable influjo en la decaída sociedad europea .2 Que está débil física o anímicamente :anda un poco decaído desde que perdió a su perro .

decaimiento

decaimiento nombre masculino 1 Estado que es característico de la persona decaída :este hecho lo alejó de la vida social y política de su país y lo sumió en la enfermedad, el decaimiento y la obsesión; él se dio cuenta de mi decaimiento y trató de darme ánimos .SINÓNIMO abatimiento .2 Pérdida progresiva de cualidades, de fuerza o de importancia que afecta a una situación o un hecho :en la primera mitad del siglo xvii se prolongó el decaimiento que la escultura presentaba desde finales del xvi, pues faltaron buenos artistas locales; el decaimiento en la compra de inmuebles es una de las consecuencias de la recesión económica que sufre el país .

decalaje

decalaje nombre masculino Falta de correspondencia o ajuste entre una persona o cosa y otra :no pudimos ver la película porque se produjo un decalaje entre las imágenes y el sonido .

decalcificación

decalcificación nombre femenino med Descalcificación .

decalcificar

decalcificar verbo transitivo Hacer perder la sustancia calcárea contenida en los huesos u otros tejidos orgánicos :algunas enfermedades decalcifican los huesos ;la osteoporosis hace que los huesos se decalcifiquen .SINÓNIMO descalcificar . Conjugación [1 ] como sacar .

decalitro

decalitro nombre masculino Medida de volumen, de símbolo dal o Dl , que es igual a 10 litros .

decálogo

decálogo nombre masculino 1 Conjunto de diez mandamientos que, según los judíos y los cristianos, dio Dios a Moisés en el monte Sinaí .En esta acepción suele escribirse con mayúscula .2 Conjunto de reglas que se consideran básicas para una actividad :le facilitó el decálogo imprescindible de todo buen vividor; el político propuso un decálogo de medidas para competir mejor en el exterior; Horacio Quiroga es autor de un decálogo del perfecto cuentista .ETIMOLOGÍA Préstamo (s. xvii ) del griego dekálogos, formado con déka ‘diez ’ y lógos ‘precepto ’; designa por antonomasia los diez mandamientos y por extensión cualquier conjunto de diez leyes. De la familia etimológica de diez (V.).

decalvación

decalvación nombre femenino 1 Acción de decalvar .2 nombre femenino Efecto de decalvar .

decalvar

decalvar verbo transitivo Afeitar completamente la cabeza a una persona como castigo por un delito .

decámetro

decámetro nombre masculino Medida de longitud, de símbolo dam o Dm , que es igual a 10 metros .

decanato

decanato nombre masculino 1 Cargo o dignidad de decano :obtuvo el decanato tras votación reñida .2 Despacho destinado oficialmente al decano para el desempeño de su cargo :las actas se guardan en el decanato .3 Período de tiempo durante el que un decano ejerce su cargo :en su decanato la facultad se consolidó .

decano, -na

decano, -na adjetivo /nombre masculino y femenino 1 [persona ] Que es el miembro más antiguo o de más edad de una colectividad :el decano del jazz latino .2 nombre masculino y femenino Persona que preside una facultad o colegio profesional :el decano de la Facultad de Informática; el decano del Colegio de Abogados .ETIMOLOGÍA Préstamo (s. xvii ) del latín decanus, derivado de decem ‘diez ’, por designar inicialmente el jefe de diez personas, posteriormente se generaliza y designa varios tipos de cargo. Del mismo origen que deán (V.).

decantación

decantación nombre femenino 1 Acción de decantar (inclinar ):aprovechando el desnivel del terreno, se ha construido una bodega vertical en la que no hay bombas que muevan el vino, sino que es un proceso natural de decantación .2 quím Procedimiento para separar dos sustancias mezcladas, una líquida de otra que no lo es o dos líquidos inmiscibles (agua y aceite ) mediante el vertido de la más densa .

decantador

decantador nombre masculino Recipiente o instalación que sirve para realizar la decantación de un líquido .

decantar

decantar 1 verbo transitivo Alabar mucho una cosa .ETIMOLOGÍA Préstamo (s. xv ) del latín decantare .

decantar

decantar 2 verbo transitivo 1 Inclinar suavemente una vasija sobre otra para que caiga el líquido contenido en la primera sin que salga el poso :algunos restaurantes tienen el detalle de decantar en una jarra las viejas reservas de vino antes de servirlas .2 decantarse verbo pronominal Inclinarse por una tendencia o una posibilidad :durante el xv el gótico español se decanta hacia una serie de avances estilísticos y decorativos, como la complicación de las bóvedas .ETIMOLOGÍA Derivado parasintético de canto ‘extremidad, lado ’, ‘punta, esquina, saliente anguloso ’.

decapado

decapado nombre masculino Acción de decapar, especialmente un metal .

decapante

decapante adjetivo /nombre masculino [sustancia, producto ] Que sirve para decapar .

decapar

decapar verbo transitivo 1 Quitar la capa de óxido o pintura que cubre un objeto por métodos físico -químicos :decapó puertas y ventanas para volver a pintarlas .2 Desoxidar la superficie de un metal sumergiéndolo en un baño de ácido .

decapitación

decapitación nombre femenino 1 Acción de decapitar :en el Carnaval, un muñeco de trapo con cabeza de madera recorre las calles de la localidad hasta que el martes se ordena su decapitación .2 Efecto de decapitar .

decapitar

decapitar verbo transitivo 1 Matar a una persona o un animal cortándole la cabeza .2 Dejar a una institución, sociedad, organización, etc. , sin sus principales dirigentes :esas últimas detenciones decapitaron la cúpula de la organización terrorista .ETIMOLOGÍA Préstamo (s. xix ) del latín decapitare, derivado de caput ‘cabeza ’. De la familia etimológica de cabo (V.).

decápodo

decápodo adjetivo /nombre masculino 1 [crustáceo ] Que pertenece al orden de los decápodos .2 [molusco ] Que pertenece al orden de los decápodos .3 decápodos nombre masculino plural Orden de crustáceos malacostráceos dotados de cinco pares de patas :el cangrejo y la langosta son decápodos .4 decápodos Orden de moluscos cefalópodos dotados de diez tentáculos :el calamar, la sepia y la pota pertenecen a los decápodos .ETIMOLOGÍA Compuesto griego, formado con déka ‘diez ’ y pûs, podós ‘pie ’. De la familia etimológica de diez (V.).

decárea

decárea nombre femenino Medida de superficie que es igual a 10 áreas .

decasílabo, -ba

decasílabo, -ba adjetivo /nombre masculino [verso ] Que tiene diez sílabas .

decatleta

decatleta nombre común Atleta que practica el decatlón .SINÓNIMO decatloniano .

decatlón

decatlón nombre masculino Competición masculina de atletismo en que los deportistas compiten en diez pruebas: carreras de 100, 400 y 1 500 m lisos, y de 110 m vallas; salto de altura, de longitud y con pértiga; y lanzamiento de peso, jabalina y disco :las pruebas de decatlón se reparten en dos jornadas .

decatloniano, -na

decatloniano, -na nombre masculino y femenino Atleta que practica el decatlón .SINÓNIMO decatleta .

Sanseido Wisdom Dictionary

decade

dec ade /dékeɪd, dɪkéɪd / (! ｟英｠｟米｠とも8割以上の人が前にアクセントを置く傾向がある ) 〖dec (10の )ade (まとまり )〗名詞複～s /-dz /C 1 10年間 ; (0で終わる年から始まる )…十年代 ▸ in the past [last ] decade 過去 [最近 ]10年間に ▸ for several decades 数十年間 ▸ The 1990s was the warmest decade on record .1990年代は記録上最も暖かい10年だった 2 1組10巻 [編, 個 ]のセット .

decadence

dec a dence /dékəd (ə )ns /名詞 U (人社会道徳などの )衰退, 堕落 .

decadent

dec a dent /dékəd (ə )nt /形容詞 1 〈人社会文芸作品などが〉退廃的な, モラルが低下した .2 退廃期の .～ly 副詞

decaf

de caf ｟まれ｠de caff /díːkæf /〖decaff einatedの短縮形〗形容詞名詞複～s U C ｟話｠カフェイン抜きの (コーヒー [お茶 ]).

decaffeinated

de caf fein at ed /dìːkǽfɪnèɪtɪd /形容詞〖通例名詞の前で〗カフェイン抜き [減 ]の .

decagram

dec a gram ｟英｠-gramme /dékəɡræ̀m /名詞 C デカグラム〘重さの単位; 10グラム〙.

decal

de cal /díːkæl |dɪkǽl /名詞＝decalcomania 2 .

decalcomania

de cal co ma ni a /dɪkælkəméɪniə /〖＜フランス〗名詞 1 U 〘美〙デカルコマニー〘紙やガラスに描いた図案をガラス陶器などに移す方法〙.2 C デカルコマニーの絵 [模様 ].

decaliter

dec a li ter ｟英｠-tre /dékəlìːtə r /名詞 C デカリットル〘体積の単位; 10リットル〙.

decameter

dec a me ter ｟英｠-tre /dékəmìːtə r /名詞 C デカメートル〘長さの単位; 10メートル〙.

decamp

de camp /dɪkǽmp /動詞自動詞 1 «…から » (ひそかに )立ち退く [去る ], 逃亡する «from » .2 〈軍隊が〉キャンプをたたむ, キャンプ地を引き払う .～ment 名詞

decant

de cant /dɪkǽnt /動詞他動詞｟かたく｠1 【デカンタなどに】〈ワインなど〉を移す «into » .2 〈人々〉の居住地 [職場 ]を移す .

decanter

de c á nt er 名詞 C デカンタ〘ワインなどを一人ひとりに注ぐ前に入れるびんまたは水差し〙.

decapitate

de cap i tate /dɪkǽpɪtèɪt /動詞他動詞｟かたく｠(極刑で )…を打ち首にする ; 〈動物〉の首 [尾 ]を切り落とす (behead ).de c à p i t á tion 名詞

decathlon

de cath lon /dɪkǽθlɑn |-lɔn /名詞 C 〖単数扱いで〗十種競技〘100m, 400m, 1,500m, 110mハードル, やり投げ, 円盤投げ, 砲丸投げ, 棒高跳び, 走り高跳び, 走り幅跳びの10種; →pentathlon 〙; 〖形容詞的に〗十種競技の .

decay

de cay /dɪkéɪ /〖de (下に ) cay (落ちる )〗動詞～s /-z /; ～ed /-d /; ～ing 自動詞 1 〈物が〉 (次第に )腐る , 腐敗する ; 〈歯が〉虫歯になる (→rot ); 〈物が〉腐って «…に » なる «into » .2 〈建造物などが〉 (徐々に )老朽化する (!しばしば進行形で ) ▸ The old castle was being allowed to decay .その古城は荒廃するがままになっていた 3 〈社会制度などが〉腐敗する, 荒廃する; 〈健康富勢力美などが〉衰える, 衰退する ; 堕落する (!しばしば進行形で ) .4 〘物理〙〈放射性物質が〉崩壊する .5 〘宇宙〙〈人工衛星が〉 (大気摩擦により )減速する .他動詞〈物〉を腐敗させる ; …を衰えさせる .名詞 U 1 腐敗 , 腐食, 腐ること ▸ tooth decay 虫歯 2 虫歯 (の部分 )▸ drill away the decay 虫歯 (の患部 )を取り除く 3 (精神健康富勢いなどの )衰退, 衰え ; 荒廃 .4 (建造物などの )老朽化, 荒廃 ▸ fall into [go to ] (the state of ) decay 老朽化する ; 衰微する 5 〘物理〙(放射性物質の )崩壊 ▸ radioactive decay 放射性崩壊 6 〘宇宙〙(人工衛星の )減速 .

decayed

de c á yed 形容詞 1 腐った ; 虫歯になった ▸ a decayed tooth 虫歯 .2 堕落した, 衰退した .