The Wordsmith Dictionary

pen ta chlo ro phe nol |ˌpentəˌklôrəˈfēnäl ˌpɛntəˌklɔrəˈfinɑl | ▶noun Chemistry a colorless, crystalline, synthetic compound used in insecticides, fungicides, weed killers, and wood preservatives. [Chem. formula: C 6 Cl 5 OH. ]

pentachord

pen ta chord |ˈpentəˌkôrd ˈpɛntəkɔrd | ▶noun a musical instrument with five strings. • a series of five musical notes.

pentacle

pen ta cle |ˈpentəkəl ˈpɛntəkəl | ▶noun a talisman or magical object, typically disk-shaped and inscribed with a pentagram or other figure, and used as a symbol of the element of earth. • another term for pentagram. • (pentacles ) one of the suits in some tarot packs, corresponding to coins in others. ORIGIN late 16th cent.: from medieval Latin pentaculum, apparently based on Greek penta- ‘five. ’

pentad

pen tad |ˈpenˌtad ˈpɛnˌtæd | ▶noun technical a group or set of five. ORIGIN mid 17th cent.: from Greek pentas, pentad-, from pente ‘five. ’

pentadactyl

pen ta dac tyl |ˌpentəˈdaktl ˌpɛntəˈdæktl | ▶adjective Zoology (of a vertebrate limb ) having five toes or fingers, or derived from such a form, as characteristic of all tetrapods. DERIVATIVES pen ta dac tyl y noun ORIGIN early 19th cent.: from penta- ‘five ’ + Greek daktulos ‘finger. ’

pentagastrin

pen ta gas trin |ˌpentəˈgastrin ˌpɛntəˈɡæstrən | ▶noun Biochemistry a synthetic peptide that has the same action as the hormone gastrin. It is used to promote gastric secretions prior to sampling them for tests.

pentagon

pen ta gon |ˈpentəˌgän ˈpɛn (t )əˌɡɑn | ▶noun 1 a plane figure with five straight sides and five angles. 2 (the Pentagon ) the pentagonal building serving as the headquarters of the US Department of Defense, near Washington, DC. • the US Department of Defense: the Pentagon said 19 of its soldiers had been killed. DERIVATIVES pen tag o nal |penˈtagənəl |adjective ORIGIN late 16th cent.: via Latin from Greek pentagōnon, neuter (used as a noun ) of pentagōnos ‘five-angled. ’

Pentagonese

Pen ta gon ese |ˌpentəˌgänˈēz ˌpɛntəɡɑnˈiz | ▶noun informal the euphemistic or cryptic language supposedly used among high-ranking US military personnel. ORIGIN 1950s: from pentagon ( sense 2 ) + -ese .

pentagram

pen ta gram |ˈpentəˌgram ˈpɛn (t )əˌɡræm | ▶noun a five-pointed star that is formed by drawing a continuous line in five straight segments, often used as a mystic and magical symbol. Compare with pentacle. ORIGIN mid 19th cent.: from Greek pentagrammon (see penta-, -gram 1 ).

pentahedron

pentamer

pen ta mer |ˈpentəmər ˈpɛntəmər | ▶noun Chemistry a polymer comprising five monomer units. DERIVATIVES pen ta mer ic |ˌpentəˈmerik |adjective

pentameral

pen tam er al |penˈtamərəl pɛnˈtæmərəl | ▶adjective Zoology (of symmetry ) fivefold, as typical of many echinoderms. Compare with pentamerous. DERIVATIVES pen tam er al ly adverb, pen tam er y |-ˈtamərē |noun

pentamerous

pen tam er ous |penˈtamərəs pɛnˈtæmərəs | ▶adjective Botany & Zoology having parts arranged in groups of five. • consisting of five joints or parts. Compare with pentameral.

pentameter

pen tam e ter |penˈtamitər pɛnˈtæmədər | ▶noun Prosody a line of verse consisting of five metrical feet, or (in Greek and Latin verse ) of two halves each of two feet and a long syllable. ORIGIN early 16th cent.: via Latin from Greek pentametros (see penta-, -meter ).

pentamidine

pen tam i dine |penˈtamiˌdēn pɛnˈtæmədin | ▶noun Medicine a synthetic antibiotic drug used chiefly in the treatment of pneumocystis carinii pneumonia (PCP ) infection. ORIGIN 1940s: from pentane + amide + -ine 4 .

pentane

pen tane |ˈpenˌtān ˈpɛnteɪn | ▶noun Chemistry a volatile liquid hydrocarbon of the alkane series, present in petroleum-based solvents. [Chem. formula: C 5 H 12; three isomers, esp. the straight-chain isomer ( n -pentane ).] ORIGIN late 19th cent.: from Greek pente ‘five ’ (denoting five carbon atoms ) + a shortened form of alkane .

pentangle

pen tan gle |ˈpenˌtaNGgəl ˌpɛnˈtæŋɡəl | ▶noun another term for pentagram. ORIGIN late Middle English: perhaps from medieval Latin pentaculum ‘pentacle ’ ( -aculum assimilated to Latin angulus ‘an angle ’).

pentanoate

pentanoate |ˈpɛnteɪnəʊət, ˈpɛnteɪnəʊeɪt | ▶noun Chemistry a salt or ester of pentanoic acid.

pentanoic acid

pen ta no ic ac id |ˌpentəˈnō -ik ˌpɛntəˌnoʊɪk ˈæsəd | ▶noun Chemistry a colorless liquid fatty acid present in various plant oils, used in making perfumes. [Chem. formula: CH 3 (CH 2 ) 3 COOH. ] ORIGIN 1920s: pentanoic from pentane .

pentaploid

pen ta ploid |ˈpentəˌploid ˈpɛntəplɔɪd |Genetics ▶adjective (of a cell or nucleus ) containing five homologous sets of chromosomes. • (of an organism or species ) composed of pentaploid cells. ▶noun a pentaploid organism, variety, or species.

pentaprism

pen ta prism |ˈpentəˌprizəm ˈpɛntəprɪzəm | ▶noun a five-sided prism with two silvered surfaces giving a constant deviation of all rays of light through 90 °, used chiefly in the viewfinders of single-lens reflex cameras.

pentaquark

pen ta quark |ˈpentəˌkwärk, -ˌkwôrk ˈpɛntəkwɑrk | ▶noun a baryon consisting of four quarks and an antiquark.

Pentateuch

Pen ta teuch |ˈpentəˌt (y )o͞ok ˈpɛntətjuk | the first five books of the Hebrew Bible (Genesis, Exodus, Leviticus, Numbers, and Deuteronomy ). Traditionally ascribed to Moses, it is now held by scholars to be a compilation from texts of the 9th to 5th centuries bc . Jewish name Torah. DERIVATIVES Pen ta teuch al |-ˌt (y )o͞okəl |adjective ORIGIN via ecclesiastical Latin from ecclesiastical Greek pentateukhos, from penta- ‘five ’ + teukhos ‘implement, book. ’

pentathlon

pen tath lon |penˈtaTH (ə )ˌlän pɛnˈtæθ (ə )lən | ▶noun an athletic event comprising five different events for each competitor, in particular (also modern pentathlon ) a men's event involving fencing, shooting, swimming, riding, and cross-country running. DERIVATIVES pen tath lete |-ˈtaTHlēt |noun ORIGIN early 17th cent. (denoting the original five events of leaping, running, discus-throwing, spear-throwing, and wrestling ): from Greek, from pente ‘five ’ + athlon ‘contest. ’

pentathol

pen ta thol ▶noun variant spelling of Pentothal, regarded as a misspelling in technical use.

pentatonic

pen ta ton ic |ˌpentəˈtänik ˈˌpɛn (t )əˈtɑnɪk | ▶adjective Music relating to, based on, or denoting a scale of five notes, esp. one without semitones equivalent to an ordinary major scale with the fourth and seventh omitted. DERIVATIVES pen ta ton i cism |-ˈtänəsizəm |noun

pentavalent

pen ta va lent |ˌpentəˈvālənt ˌpɛntəˈveɪlənt | ▶adjective Chemistry having a valence of five.

pentazocine

pen taz o cine |penˈtazəˌsēn pɛnˈtæzəsin | ▶noun Medicine a synthetic compound that is a potent, nonaddictive analgesic, often given during childbirth. [A tricyclic compound; chem. formula: C 19 H 27 NO. ] ORIGIN 1960s: from pentane + azo- + octa- + -ine 4 .

Pentecost

Pen te cost |ˈpentəˌkôst, -ˌkäst ˈpɛn (t )əˌkɔst ˈpɛn (t )əˌkɑst | ▶noun 1 the Christian festival celebrating the descent of the Holy Spirit on the disciples of Jesus after his Ascension, held on the seventh Sunday after Easter. • the day on which this festival is held. Also called Whitsunday. 2 the Jewish festival of Shavuoth. ORIGIN Old English pentecosten, via ecclesiastical Latin from Greek pentēkostē (hēmera ) ‘fiftieth (day )’ (because the Jewish festival is held on the fiftieth day after the second day of Passover ).

Pentecostal

Pen te cos tal |ˌpentəˈkôstl, -ˈkästl ˈˌpɛn (t )əˈkɔstl | ▶adjective 1 of or relating to Pentecost. 2 of, relating to, or denoting any of a number of Christian sects and individuals emphasizing baptism in the Holy Spirit, evidenced by speaking in tongues, prophecy, healing, and exorcism. [with reference to the baptism in the Holy Spirit at the first Pentecost (Acts 2: 9-11 ).] ▶noun a member of a Pentecostal sect. DERIVATIVES Pen te cos tal ism |-ˌizəm |noun, Pen te cos tal ist |-ist |adjective & noun

Pentelic marble

Pentelic marble |pɛnˈtɛlɪk | ▶noun [ mass noun ] a white marble quarried on Mount Pentelicus near Athens.

Penthesilea

Penthesilea |ˌpɛnθɛsɪˈliːə |Greek Mythology the queen of the Amazons, who came to the help of Troy after the death of Hector and was killed by Achilles.

penthouse

pent house |ˈpentˌhous ˈpɛntˌhaʊs | ▶noun 1 an apartment on the top floor of a tall building, typically luxuriously fitted and offering fine views. 2 archaic an outhouse or shelter built onto the side of a building, having a sloping roof. ORIGIN Middle English pentis ( sense 2 ), shortening of Old French apentis, based on late Latin appendicium ‘appendage, ’ from Latin appendere ‘hang on. ’ The change of form in the 16th cent. was by association with French pente ‘slope ’ and house .

pentimento

pen ti men to |ˌpentəˈmentō ˌpɛntəˈmɛntoʊ | ▶noun ( pl. pentimenti |-ˈmentē | ) a visible trace of earlier painting beneath a layer or layers of paint on a canvas. ORIGIN early 20th cent.: from Italian, literally ‘repentance. ’

Pentland Firth

Pent land Firth |ˈpentlənd ˌpɛntlənd ˈfərθ | a channel that separates the Orkney Islands from the northern tip of mainland Scotland. It links the North Sea with the Atlantic Ocean.

pentlandite

pent land ite |ˈpentlənˌdīt ˈpɛntləndaɪt | ▶noun a bronze-yellow mineral that consists of a sulfide of iron and nickel and is the principal ore of nickel. ORIGIN mid 19th cent.: from the name of Joseph B. Pentland (1797 –1873 ), Irish traveler, + -ite 1 .

pentobarbital

pen to bar bi tal |ˌpentəˈbärbiˌtäl, -ˌtôl ˌpɛntəˈbɑrbədl | ▶noun Medicine a narcotic and sedative barbiturate drug formerly used to relieve insomnia. [Alternative name: 5-ethyl-5 -(1-methylbutyl )-barbituric acid; often used as the sodium salt (sodium pentobarbitone, Nembutal ).] ORIGIN 1930s: from pentane + barbital (or barbitone ).

pentobarbitone

pen to bar bi tone |ˌpentəˈbärbiˌtōn ˌpɛntəˈbɑrbətoʊn | ▶noun British term for pentobarbital.

pentode

pen tode |ˈpentōd ˈpɛntoʊd | ▶noun Electronics a thermionic tube having five electrodes. ORIGIN early 20th cent.: from Greek pente ‘five ’ + hodos ‘way. ’

pentose

pen tose |ˈpentōs ˈpɛntoʊs | ▶noun Chemistry any of the class of simple sugars whose molecules contain five carbon atoms, such as ribose and xylose. They generally have the chemical formula C 5 H 10 O 5. ORIGIN late 19th cent.: from penta- ‘five ’ + -ose 2 .

Pentothal

Pen to thal |ˈpentəˌTHôl, -ˌTHäl ˈpɛntəθɔl | ▶noun trademark for thiopental.

pentoxide

pent ox ide |pentˈäksīd pɛnˈtɑksaɪd | ▶noun Chemistry an oxide containing five atoms of oxygen in its molecule or empirical formula.

pent roof

pent roof ▶noun a roof consisting of a single sloping surface. ORIGIN mid 19th cent.: from penthouse + roof .

pentstemon

pent ste mon |pentˈstēmən, ˈpentstəmən | ▶noun variant spelling of penstemon.

pent-up

pent-up |pentˈʌp | ▶adjective closely confined or held back: pent-up frustrations. ORIGIN late 16th cent.: pent, obsolete past participle of pen 2 (verb ).

pentyl

pen tyl |ˈpentəl ˈpɛntəl | ▶noun [ as modifier ] Chemistry of or denoting an alkyl radical −C 5 H 11. Compare with amyl. ORIGIN from pentane + alkyl .

Oxford Dictionary

pent

pent |pɛnt | ▶adjective chiefly literary another term for pent-up: with pent breath she waited out the meeting.

penta-

penta- |ˈpɛntə | ▶combining form five; having five: pentagram | pentadactyl. ORIGIN from Greek pente ‘five ’.

pentachlorophenol

pentachlorophenol |ˌpɛntəˌklɔːrəʊˈfiːnɒl | ▶noun [ mass noun ] Chemistry a colourless crystalline synthetic compound used in insecticides, fungicides, weedkillers, and wood preservatives. ●Chem. formula: C 6 Cl 5 OH.

pentachord

penta |chord |ˈpɛntəkɔːd | ▶noun 1 a musical instrument with five strings. 2 a series of five musical notes.

pentacle

pentacle |ˈpɛntək (ə )l | ▶noun a talisman or magical object, typically disc-shaped and inscribed with a pentagram, used as a symbol of the element of earth. • a pentagram. • (pentacles ) one of the suits in some tarot packs, corresponding to coins in others. ORIGIN late 16th cent.: from medieval Latin pentaculum, apparently based on Greek penta- ‘five ’.

pentad

pentad |ˈpɛntad | ▶noun technical a group or set of five. ORIGIN mid 17th cent.: from Greek pentas, pentad-, from pente ‘five ’.

pentadactyl

pentadactyl |ˌpɛntəˈdaktɪl | ▶adjective Zoology (of a vertebrate limb ) having five toes or fingers, or derived from such a form, as characteristic of all tetrapods. DERIVATIVES pentadactyly |-ˈdaktɪli |noun ORIGIN early 19th cent.: from penta- ‘five ’ + Greek daktulos ‘finger ’.

pentagastrin

pentagastrin |ˌpɛntəˈgastrɪn | ▶noun [ mass noun ] Biochemistry a synthetic peptide which has the same action as the hormone gastrin. It is used to promote gastric secretions prior to sampling them for tests.

Pentagon

Pentagon (the Pentagon ) the pentagonal building serving as the headquarters of the US Department of Defense, near Washington DC. Part of the building was badly damaged in the terrorist attacks of 11 September 2001. • the US Department of Defense: the Pentagon said that ten soldiers had been killed.

pentagon

Pentagonese

Pentagonese |ˌpɛntəgəˈniːz | ▶noun [ mass noun ] US informal the euphemistic or cryptic language supposedly used among high-ranking US military personnel. ORIGIN 1950s: from pentagon + -ese .

pentagram

penta |gram |ˈpɛntəgram | ▶noun a five-pointed star that is formed by drawing a continuous line in five straight segments, often used as a mystic and magical symbol. Compare with pentacle. ORIGIN mid 19th cent.: from Greek pentagrammon (see penta-, -gram 1 ).

pentahedron

pentahedron |ˌpɛntəˈhiːdr (ə )n, -ˈhɛd -| ▶noun ( pl. pentahedra |-drə | or pentahedrons ) a solid figure with five plane faces. DERIVATIVES pentahedral adjective ORIGIN late 18th cent.: from penta- ‘five ’ + -hedron, on the pattern of words such as polyhedron .

pentamer

pentamer |ˈpɛntəmə | ▶noun Chemistry a polymer comprising five monomer units. DERIVATIVES pentameric |ˌpɛntəˈmɛrɪk |adjective

pentameral

pentameral |pɛnˈtamərəl | ▶adjective Zoology (of symmetry ) fivefold, as typical of many echinoderms. Compare with pentamerous. DERIVATIVES pentamerally adverb, pentamery noun

pentamerous

pentamerous |pɛnˈtam (ə )rəs | ▶adjective Botany & Zoology having parts arranged in groups of five. • consisting of five joints or parts. Compare with pentameral.

pentameter

pentameter |pɛnˈtamɪtə | ▶noun Prosody a line of verse consisting of five metrical feet, or (in Greek and Latin verse ) of two halves each of two feet and a long syllable. ORIGIN early 16th cent.: via Latin from Greek pentametros (see penta-, -meter ).

pentamidine

pentamidine |pɛnˈtamɪdiːn | ▶noun [ mass noun ] Medicine a synthetic antibiotic drug used chiefly in the treatment of PCP infection. ORIGIN 1940s: from pentane + amide + -ine 4 .

pentane

pentane |ˈpɛnteɪn | ▶noun [ mass noun ] Chemistry a volatile liquid hydrocarbon of the alkane series, present in petroleum spirit. ●Chem. formula: C 5 H 12; three isomers, especially the straight-chain isomer ( n -pentane ). ORIGIN late 19th cent.: from Greek pente ‘five ’ (denoting five carbon atoms ) + a shortened form of alkane .

pentangle

pent |angle |ˈpɛntaŋg (ə )l | ▶noun another term for pentagram. ORIGIN late Middle English: perhaps from medieval Latin pentaculum ‘pentacle ’ ( -aculum assimilated to Latin angulus ‘an angle ’).

pentanoate

pentanoate |ˈpɛnteɪnəʊət, ˈpɛnteɪnəʊeɪt | ▶noun Chemistry a salt or ester of pentanoic acid.

pentanoic acid

pentanoic acid |ˌpɛntəˈnəʊɪk | ▶noun [ mass noun ] Chemistry a colourless liquid fatty acid present in various plant oils, used in making perfumes. ●Chem. formula: CH 3 (CH 2 ) 3 COOH. ORIGIN 1920s: pentanoic from pentane .

pentaploid

pentaploid |ˈpɛntəplɔɪd |Genetics ▶adjective (of a cell or nucleus ) containing five homologous sets of chromosomes. • (of an organism or species ) composed of pentaploid cells. ▶noun a pentaploid organism, variety, or species.

pentaprism

penta |prism |ˈpɛntəprɪz (ə )m | ▶noun a prism having a five-sided cross section with two silvered surfaces, giving a constant deviation of all rays of light through 90 °, used chiefly in the viewfinders of single-lens reflex cameras.

pentaquark

pen ta quark |ˈpentəˌkwärk, -ˌkwôrk ˈpɛntəkwɑrk | ▶noun a baryon consisting of four quarks and an antiquark.

Pentateuch

Pentateuch |ˈpɛntətjuːk | the first five books of the Old Testament (Genesis, Exodus, Leviticus, Numbers, and Deuteronomy ). Traditionally ascribed to Moses, it is now held by scholars to be a compilation from texts of the 9th to 5th centuries bc . Jewish name Torah. DERIVATIVES Pentateuchal |-ˈtjuːk (ə )l |adjective ORIGIN via ecclesiastical Latin from ecclesiastical Greek pentateukhos, from penta- ‘five ’ + teukhos ‘implement, book ’.

pentathlon

pent |ath ¦lon |pɛnˈtaθlɒn, -lən | ▶noun an athletic event comprising five different events for each competitor, in particular (also modern pentathlon ) an event involving fencing, shooting, swimming, riding, and cross-country running. DERIVATIVES pentathlete |-liːt |noun ORIGIN early 17th cent. (denoting the original five events of leaping, running, discus-throwing, spear-throwing, and wrestling ): from Greek, from pente ‘five ’ + athlon ‘contest ’.

pentathol

pentathol ▶noun variant spelling of Pentothal, regarded as a misspelling in technical use.

pentatonic

pentatonic |ˌpɛntəˈtɒnɪk | ▶adjective Music relating to, based on, or denoting a scale of five notes, especially one without semitones equivalent to an ordinary major scale with the fourth and seventh omitted. DERIVATIVES pentatonicism noun

pentavalent

pentavalent |ˌpɛntəˈveɪl (ə )nt | ▶adjective Chemistry having a valency of five.

pentazocine

pentazocine |pɛnˈtazə (ʊ )siːn | ▶noun [ mass noun ] Medicine a synthetic compound that is a potent non-addictive analgesic, often given during childbirth. ●A tricyclic compound; chem. formula: C 19 H 27 NO. ORIGIN 1960s: from pentane + azo- + octa- + -ine 4 .

Pentecost

Pentecost |ˈpɛntɪkɒst | ▶noun 1 the Christian festival celebrating the descent of the Holy Spirit on the disciples of Jesus after his Ascension, held on the seventh Sunday after Easter. • the day on which the festival of Pentecost is held; Whit Sunday. 2 the Jewish festival of Shavuoth. ORIGIN Old English pentecosten, via ecclesiastical Latin from Greek pentēkostē (hēmera ) ‘fiftieth (day )’ (because the Jewish festival is held on the fiftieth day after the second day of Passover ).

Pentecostal

Pente |cos ¦tal |pɛntɪˈkɒst (ə )l | ▶adjective 1 relating to Pentecost. 2 relating to or denoting any of a number of Christian sects emphasizing baptism in the Holy Spirit, evidenced by ‘speaking in tongues ’, prophecy, healing, and exorcism. [with reference to the baptism in the Holy Spirit at the first Pentecost (Acts 2:9-11 ).] ▶noun a member of a Pentecostal sect. DERIVATIVES Pentecostalism noun, Pentecostalist adjective & noun

Pentelic marble

Pentelic marble |pɛnˈtɛlɪk | ▶noun [ mass noun ] a white marble quarried on Mount Pentelicus near Athens.

Penthesilea

Penthesilea |ˌpɛnθɛsɪˈliːə |Greek Mythology the queen of the Amazons, who came to the help of Troy after the death of Hector and was killed by Achilles.

penthouse

pent |house |ˈpɛnthaʊs | ▶noun 1 a flat on the top floor of a tall building, typically one that is luxuriously fitted. 2 archaic an outhouse or shelter with a sloping roof, built on to the side of a building. ORIGIN Middle English pentis (in sense 2 ), shortening of Old French apentis, based on late Latin appendicium ‘appendage ’, from Latin appendere ‘hang on ’. The change of form in the 16th cent. was by association with French pente ‘slope ’ and house .

pentimento

pentimento |ˌpɛntɪˈmɛntəʊ | ▶noun ( pl. pentimenti |-tiː | ) a visible trace of earlier painting beneath a layer or layers of paint on a canvas. ORIGIN early 20th cent.: from Italian, literally ‘repentance ’.

Pentland Firth

Pent |land Firth |ˈpɛntlənd | a channel separating the Orkney Islands from the northern tip of mainland Scotland. It links the North Sea with the Atlantic.

pentlandite

pentlandite |ˈpɛntləndʌɪt | ▶noun [ mass noun ] a bronze-yellow mineral which consists of a sulphide of iron and nickel and is the principal ore of nickel. ORIGIN mid 19th cent.: from the name of Joseph B. Pentland (1797 –1873 ), Irish traveller, + -ite 1 .

pentobarbitone

pentobarbitone |ˌpɛntə (ʊ )ˈbɑːbɪtəʊn |(US pentobarbital ) ▶noun [ mass noun ] Medicine a narcotic and sedative barbiturate drug formerly used to relieve insomnia. ●Alternative name: 5-ethyl-5 -(1-methylbutyl )-barbituric acid; often used as the sodium salt (sodium pentobarbitone, Nembutal ). ORIGIN 1930s: from pentane + barbitone (or barbital ).

pentode

pentode |ˈpɛntəʊd | ▶noun Electronics a thermionic valve having five electrodes. ORIGIN early 20th cent.: from Greek pente ‘five ’ + hodos ‘way ’.

pentose

pentose |ˈpɛntəʊz, -s | ▶noun Chemistry any of the class of simple sugars whose molecules contain five carbon atoms, such as ribose and xylose. They generally have the chemical formula C 5 H 10 O 5. ORIGIN late 19th cent.: from penta- ‘five ’ + -ose 2 .

Pentothal

Pentothal |ˈpɛntəθal | ▶noun trademark for thiopentone.

pentoxide

pentoxide |pɛnˈtɒksʌɪd | ▶noun Chemistry an oxide containing five atoms of oxygen in its molecule or empirical formula.

pent roof

pent roof ▶noun a roof consisting of a single sloping surface. ORIGIN mid 19th cent.: from penthouse + roof .

pentstemon

pent |ste ¦mon ▶noun variant spelling of penstemon.

pent-up

pent-up ▶adjective 1 (of emotions, energy, etc. ) unable to be expressed or released: pent-up frustrations. 2 closely confined or held back: a surge of pent-up water. ORIGIN late 16th cent.: pent, obsolete past participle of pen 2 (verb ).

pentyl

pentyl |ˈpɛntʌɪl, -tɪl | ▶noun [ as modifier ] Chemistry of or denoting an alkyl radical −Co 5 H 11, derived from pentane. Compare with amyl.

American Oxford Thesaurus

pent-up

pent-up adjective pent-up anger will eventually explode: repressed, suppressed, stifled, smothered, restrained, confined, bottled up, held in /back, unvented, kept in check, curbed, bridled.

Oxford Thesaurus

pent-up

pent-up adjective a release of pent-up emotion: repressed, suppressed, stifled, smothered, restrained, constrained, confined, bottled up, held in /back, kept in check, curbed, bridled.

Duden Dictionary

penta-

pen ta-, Pen ta-, pent- Pent- Präfix Penta- vor Vokalen auch pent- Pent- griechisch pénte Bestimmungswort in Zusammensetzungen mit der Bedeutung fünf z. B. Pentameter, pentagonal

Pentachord

Pen ta chord Substantiv, Neutrum , das |Pentach o rd …k …|das Pentachord; Genitiv: des Pentachord [e ]s, Plural: die Pentachorde griechisch-lateinisch fünfsaitiges Streich- oder Zupfinstrument

Pentade

Pen ta de Substantiv, feminin Meteorologie , die |Pent a de |Zeitraum von fünf aufeinanderfolgenden Tagen

Pentadik

Pen ta dik Substantiv, feminin Mathematik , die |Pent a dik |die Pentadik; Genitiv: der Pentadik griechisch-neulateinisch Zahlensystem mit der Grundzahl 5

Pentaeder

Pen ta eder Substantiv, Neutrum Geometrie , das |Penta e der |zu griechisch hédra = Fläche von fünf Flächen begrenzter Vielflächner; Fünfflach, -flächner

Pentaeteris

Pen ta ete ris Substantiv, feminin , die |Pentaet e ris |die Pentaeteris; Genitiv: der Pentaeteris, Plural: die Pentaeteren griechisch-lateinisch altgriechischer Zeitraum von fünf Jahren

Pentaglotte

Pen ta glot te Substantiv, feminin , die |Pentagl o tte |die Pentaglotte; Genitiv: der Pentaglotte, Plural: die Pentaglotten griechisch-neulateinisch in fünf Sprachen abgefasstes Buch, besonders fünfsprachige Bibel

Pentagon

Pen ta gon Substantiv, Neutrum , das das Pentagon; Genitiv: des Pentagons, Plural: die Pentagone griechisch pentágōnos = fünfeckig, zu: gōnía = Ecke, Winkel 1 |pɛntaˈgoːn |Geometrie Fünfeck 2 a |ˈpɛntagɔn …tə …|ohne Plural auf einem fünfeckigen Grundriss errichtetes Gebäude, in dem das amerikanische Verteidigungsministerium untergebracht ist im Pentagon b |ˈpɛntagɔn …tə …|ohne Plural amerikanisches Verteidigungsministerium ein Sprecher des Pentagons

pentagonal

pen ta go nal Adjektiv Geometrie |pentagon a l |fünfeckig

Pentagondodekaeder

Pen ta gon do de ka eder Substantiv, Neutrum Geometrie , das |Pentag o ndodekaeder |von zwölf fünfeckigen Flächen begrenzter Körper Kurzform: Dodekaeder 2

Pentagonikositetraeder

Pen ta gon iko si te t ra eder , Pen ta gon iko si te tra eder Substantiv, Neutrum , das |Pentag o nikositetraeder |das Pentagonikositetraeder; Genitiv: des Pentagonikositetraeders, Plural: die Pentagonikositetraeder aus untereinander kongruenten Fünfecken bestehender vierundzwanzigflächiger [Kristall ]körper

Pentagramm

Pen ta gramm Substantiv, Neutrum , das |Pentagr a mm |zu griechisch pentágrammos = mit fünf Linien fünfeckiger Stern, der in einem Zug mit fünf gleich langen Linien gezeichnet werden kann und im Volksglauben als Zeichen gegen Zauberei o. Ä. gilt; Drudenfuß

Pentalpha

Pent al pha Substantiv, Neutrum , das |Pent a lpha | Pentagramm

pentamer

pen ta mer Adjektiv Fachsprache, besonders Botanik |pentam e r |zu griechisch méros = (An )teil fünfgliedrig, fünfteilig

Pentameron

Pen t a me ron , Pen ta me ron Substantiv, Neutrum , das |Pent a meron |das Pentameron; Genitiv: des Pentamerons italienisch (il ) Pentamerone (unter Anlehnung an das Dekameron, italienisch Decamerone, Boccaccios ) zu griechisch pénte = fünf und hēméra = Tag Sammlung neapolitanischer Märchen, die der Herausgeber G. Basile (1575 bis 1632 ) in fünf Tagen erzählen lässt

Pentameter

Pen ta me ter Substantiv, maskulin Verslehre , der |Pent a meter |lateinisch pentameter < griechisch pentámetros (nach deutscher Messung ) aus sechs Versfüßen bestehender epischer Vers, der durch Zäsur in zwei Hälften geteilt ist

Pentan

Pen tan Substantiv, Neutrum Chemie , das |Pent a n |sehr flüchtiger (gesättigter ) Kohlenwasserstoff mit fünf Kohlenstoffatomen

Pentanol

Pen ta nol Substantiv, Neutrum , das |Pentan o l |das Pentanol; Genitiv: des Pentanols ein Amylalkohol

Pentapla

Pen ta p la , Pen ta pla Substantiv, feminin , die |P e ntapla |die Pentapla; Genitiv: der Pentapla, Plural: die Pentaplaplen griechisch-neulateinisch Pentaglotte

Pentaprisma

Pen ta pris ma Substantiv, Neutrum , das |Pentapr i sma |das Pentaprisma; Genitiv: des Pentaprismas, Plural: die Pentaprismen in optischen Geräten verwendetes Fünfkantprisma, Reflexionsprisma

Pentarchie

Pen t ar chie, Pen tar chie Substantiv, feminin bildungssprachlich , die |Pentarch ie |griechisch pentarchía = Magistrat der Fünf (in Karthago ), zu: árchein = Führer sein, herrschen Herrschaft von fünf Mächten besonders die Herrschaft der Großmächte Großbritannien, Frankreich, Deutsches Reich, Österreich und Russland über Europa 1860 bis 1914

Pentastomiden

Pen ta s to mi den , Pen tas to mi den Pluralwort , die |Pentastom i den |die Pentastomiden (Plural ) Zungenwürmer parasitische Gliedertiere in der Lunge von Reptilien, Vögeln und Säugetieren

Pentastylos

Pen ta s ty los , Pen ta sty los Substantiv, maskulin , der |Pent a stylos |der Pentastylos; Genitiv: des Pentastylos, Plural: die Pentastylen zu griechisch stỹlos = Säule antiker Tempel mit je fünf Säulen an den Schmalseiten

Pentateuch

Pen ta teuch Substantiv, maskulin christliche Religion , der |Pentat eu ch |kirchenlateinisch pentateuchus < griechisch pentáteuchos = Fünfrollenbuch, zu: teuchos = Buch die fünf Bücher Mose im Alten Testament

Pentathlon

Pen t ath lon, Pen tath lon Substantiv, Neutrum , das |P e ntathlon auch pɛntˈ |aːtlɔn |griechisch péntathlon, zu: ãthlon, Athlet altgriechischer Fünfkampf

Pentatonik

Pen ta to nik Substantiv, feminin , die |Pentat o nik |griechisch-neulateinisch fünfstufiges, halbtonloses Tonsystem

pentatonisch

pen ta to nisch Adjektiv |pentat o nisch |die Pentatonik betreffend

pentazyklisch

pen ta zy k lisch , pen ta zy klisch Adjektiv Botanik |pentaz y klisch |fünf Blütenkreise aufweisend von bestimmten Zwitterblüten

pentekostal

pen te kos tal Adjektiv Religion |pentekost a l |kirchenlateinisch pentecostalis = pfingstlich, zu: pentecoste < griechisch pentēkostḗ, Pentekoste 1 die Pentekoste betreffend; pfingstlich 2 pfingstlerisch pentekostale Gruppen

Pentekoste

Pen te kos te Substantiv, feminin Religion , die |Pentekost e |griechisch pentēkostḗ (hēméra ), Pfingsten 1 fünfzigster Tag nach Ostern; Pfingsten 2 Zeitraum zwischen Ostern und Pfingsten

Pentelikon

Pen te li kon Substantiv, maskulin , der |Pent e likon |Gebirge in Attika

pentelisch

pen te lisch Adjektiv |pent e lisch |

Penten

Pen ten Substantiv, Neutrum Chemie , das |Pent e n |das Penten; Genitiv: des Pentens, Plural: die Pentene ungesättigter Kohlenwasserstoff aus der Reihe der Olefine

Pentere

Pen te re Substantiv, feminin , die |Pent e re |spätlateinisch penteris < griechisch pentḗrēs (naũs ) = Fünfruderer (im Altertum ) Kriegsschiff, das von in fünf Reihen übereinandersitzenden Ruderern bewegt wird

Penthaus

Pent haus Substantiv, Neutrum , das |P e nthaus |das Penthaus; Genitiv: des Penthauses, Plural: die Penthäuser englisch-amerikanisch ; deutsch Penthouse

Penthemimeres

Pen th e mi me res , Pen the mi me res Substantiv, feminin antike Metrik , die |Penthemimer e s |die Penthemimeres; Genitiv: der Penthemimeres, Plural: die Penthemimeres griechisch Zäsur nach dem fünften Halbfuß, besonders im Hexameter und jambischen Trimeter

Penthesilea

Pen the si lea , Pen the si leia Eigenname Penthesileia |Penthesil e a Penthesil ei a |griechisch Amazonenkönigin in der griechischen Sage

Penthouse

Pent house Substantiv, Neutrum , das |ˈpɛnthaʊs |das Penthouse; Genitiv: des Penthouse, Plural: die Penthouses |[…haʊzɪs ]|englisch penthouse, unter französischem Einfluss über das Mittellateinische zu spätlateinisch appendicium = Anhang, zu lateinisch appendix, Appendix exklusive Wohnung auf dem Flachdach eines Etagenhauses oder eines Hochhauses

Pentimenti

Pen ti men ti Pluralwort , die |Pentim e nti |die Pentimenti (Plural ) lateinisch-italienisch ; »Reuezüge «Linien oder Untermalungen auf Gemälden oder Zeichnungen, die vom Künstler abgeändert, aber [später ] wieder sichtbar wurden

Pentium

Pen ti um Substantiv, maskulin , der ® |P e ntium |der Pentium; Genitiv: des Pentium [s ], Plural: die Pentiums zu griechisch pénte = fünf, bezogen auf den von der amerikanischen Firma Intel entwickelten Prozessorprototyp 586 als Nachfolger des 486er -Prozessors Bezeichnung für alle dem Prozessorprototyp 486 folgenden Prozessorgenerationen

Pentlandit

Pent lan dit Substantiv, maskulin Mineralogie , der |Pentland i t auch …ˈdɪt |der Pentlandit; Genitiv: des Pentlandits, Plural: die Pentlandite neulateinisch ; nach dem Entdecker J. B. Pentland, 1797 –1873 Eisennickelkies, wichtiges Nickelerz

Pentode

Pen t o de , Pen to de Substantiv, feminin Elektrotechnik , die |Pent o de |zu griechisch pénte = fünf und Elektrode Röhre 4a mit fünf Elektroden

Pentose

Pen to se Substantiv, feminin , die |Pent o se |die Pentose; Genitiv: der Pentose, Plural: die Pentosen in der Natur weitverbreitetes Monosaccharid mit fünf Kohlenstoffatomen; Einfachzucker

Pentosurie

Pen to s u rie Substantiv, feminin Medizin , die |Pentosur ie |die Pentosurie; Genitiv: der Pentosurie das Auftreten von Pentosen im Harn

Pentothal

Pen to thal Substantiv, Neutrum , das ® |Pentoth a l |das Pentothal; Genitiv: des Pentothals Kunstwort ein Narkosemittel

French Dictionary

penta-

penta- préf. préfixe Élément du grec signifiant « cinq ». : Pentagone. Prononciation Les lettres en se prononcent in, [pɛ̃ta ]

pentagone

pentagone n. m. nom masculin géométrie Polygone qui a cinq angles et cinq côtés. Prononciation Les lettres en se prononcent in, [pɛ̃tagɔn ]

pentathlon

pentathlon n. m. nom masculin Compétition olympique comportant des épreuves de cross, d ’équitation, de natation, d ’escrime et de tir. Prononciation Les lettres en se prononcent in, [pɛ̃tatlɔ̃ ] Note Orthographique pentat h lon.

pente

pente n. f. nom féminin 1 Inclinaison. : La rue est en pente. 2 Terrain incliné. : Martin dévale les pentes enneigées en skis. SYNONYME côte ; descente .

Pentecôte

Pentecôte n. f. nom féminin Fête chrétienne. : La fête de la Pentecôte. Le lundi de Pentecôte. Note Typographique Ce nom s ’écrit toujours avec une majuscule. Note Orthographique Pentec ô te.

penthotal

penthotal n. m. nom masculin Barbiturique. : Des penthotals. Prononciation Les lettres en se prononcent in, [pɛ̃tɔtal ] Note Orthographique pent h otal.

pentu

pentu , ue adj. adjectif En pente. : Un toit pentu.

penture

penture n. f. nom féminin Ferrure destinée à soutenir une porte, une fenêtre.

Spanish Dictionary

penta-

penta- Elemento prefijal de origen griego que entra en la formación de nombres y adjetivos con el significado de ‘cinco ’:pentagrama, pentasílabo, pentadáctilo .También puede adoptar la forma pente- .

pentacordio

pentacordio nombre masculino Antiguo instrumento musical de cinco cuerdas parecido a la lira .

pentadáctilo, -la

pentadáctilo, -la adjetivo /nombre masculino y femenino biol Que tiene cinco dedos o cinco divisiones en forma de dedos :los primates son animales pentadáctilos .

pentadecágono

pentadecágono nombre masculino Figura geométrica de quince lados .

pentadecasílabo, -ba

pentadecasílabo, -ba adjetivo /nombre masculino [verso ] Que tiene quince sílabas .

pentaedro

pentaedro nombre masculino Cuerpo geométrico de cinco caras .

pentagonal

pentagonal adjetivo Que tiene forma de pentágono :planta pentagonal; simetría pentagonal .

pentágono

pentágono nombre masculino Figura geométrica de cinco lados .

pentagrama

pentagrama o pentágrama nombre masculino Conjunto de cinco líneas horizontales paralelas y equidistantes sobre el cual se escriben las notas musicales y demás signos de notación :las notas se escriben encima de las líneas del pentagrama o en los espacios que hay entre ellas .

pentámero, -ra

pentámero, -ra adjetivo 1 Que consta de cinco partes o piezas :verticilo pentámero; el cuerpo de la estrella de mar presenta una simetría radial pentámera .2 bot [flor ] Que tiene los verticilos estériles (cáliz y corola ) formados por cinco piezas :la violeta tiene una flor pentámera .3 zool [insecto ] Que tiene cada tarso (último segmento de la pata ) dividido en cinco artejos o partes .

pentámetro

pentámetro adjetivo /nombre masculino [verso ] Que consta de cinco pies métricos .

pentano

pentano nombre masculino quím Hidrocarburo saturado muy volátil que se emplea como disolvente :la molécula de pentano está constituida por cinco átomos de carbono .

pentápolis

pentápolis nombre femenino En la Antigüedad y en la Edad Media, territorio que comprendía cinco ciudades importantes :la pentápolis del Jordán; la pentápolis italiana .El plural es pentápolis .

pentarquía

pentarquía nombre femenino Gobierno formado por cinco personas .

pentasílabo, -ba

pentasílabo, -ba adjetivo /nombre masculino [palabra, verso ] Que tiene cinco sílabas :el pentasílabo fue un verso muy utilizado por algunos poetas del siglo xix .

pentathlón

pentathlón pentatlón .

pentatleta

pentatleta nombre común Atleta que practica el pentatlón .

pentatlón

pentatlón (también pentathlón )nombre masculino 1 En la antigua Grecia, competición atlética en que los participantes competían en cinco pruebas: carrera, salto de longitud, lucha y lanzamiento de disco y jabalina .2 Competición masculina de atletismo en que los deportistas compiten en cinco pruebas: carreras de 200 y 1 500 m lisos; salto de longitud; y lanzamiento de disco y de jabalina .pentatlón moderno Competición deportiva en que los deportistas compiten en cinco pruebas: equitación (prueba de obstáculos sobre un recorrido de unos 1 000 m ), natación (300 m libres ), tiro de precisión (20 disparos con pistola ), esgrima (se enfrentan todos los participantes entre sí ) y carrera campo a través (4 000 m ):el pentatlón moderno es una modalidad olímpica .

pentavalente

pentavalente adjetivo quím Que tiene valencia 5 .

pente-

pente- penta- .

pentecostés

pentecostés nombre masculino 1 Festividad religiosa que se celebra cincuenta días después de Pascua, en que los judíos conmemoran el día en que Dios les dio la ley en el monte Sinaí .2 Festividad religiosa que se celebra cincuenta días después de Pascua, en que los cristianos conmemoran la venida del Espíritu Santo sobre los apóstoles .También Pascua de Pentecostés .En esta acepción suele escribirse con mayúscula .

pentedecágono

pentedecágono (también pentadecágono )nombre masculino Figura geométrica de quince lados .

pentélico, -ca

pentélico, -ca adjetivo De la montaña griega de Ática, llamada Pentélico, cuyo mármol blanco se utilizó para los monumentos atenienses en el siglo v a. C., o relacionado con ella :mármol pentélico .

penthouse

penthouse nombre masculino Amér Último piso de un edificio, generalmente construido sobre la cornisa y un poco retirado del nivel de la fachada .SINÓNIMO ático .Se pronuncia aproximadamente ‘pentjáus ’.

pentotal

pentotal nombre masculino Sustancia hipnótica de acción rápida y corta duración que se empleaba como anestésico en algunas operaciones quirúrgicas .

Sanseido Wisdom Dictionary

pent

pent /pent /動詞 pen 2 の過去形過去分詞 .形容詞閉じ込められた, 幽閉された (in , up ); うっ積した .

pent-

pent- pen ta- /pent //péntə /複合要素 5 .

pentagon

pen ta gon /péntəɡɑ̀n |-ɡ (ə )n /名詞 1 〖the P- 〗米国国防総省 (の建物 ), ペンタゴン〘Washington D.C. 郊外Virginia州Arlingtonにある五角形の建物〙.2 C 五角形 .pen t á g o nal 形容詞

pentagram

pen ta gram /péntəɡræ̀m /名詞 C 星形五角形〘魔除けまじないの印〙.

pentameter

pen tam e ter /pentǽmətə r /名詞 C 1 〘韻律〙5歩格 (の詩 ); (特に )弱強5歩格 .2 (ギリシャローマ古典詩の )長短短五歩格 .

Pentateuch

Pen ta teuch /péntət j ùːk /名詞〘宗〙〖the ～〗モーセ五書〘旧約聖書の最初の5巻〙.

pentathlon

pen tath lon /pentǽθlən /名詞 C 〖単数形で; しばしば the ～〗5種競技〘陸上水泳馬術射撃フェンシングの総合得点で競う; →decathlon 〙.

Pentecost

Pen te cost /péntɪkɔ̀ːst |-kɔ̀st /名詞 1 ｟主に米｠〘キリスト教〙五旬祭 [節 ], 聖霊降臨節 (Whitsunday ) 〘Easterから7週目の日曜〙.2 〘ユダヤ教〙ペンテコステ〘ユダヤ人の収穫祭; Passover後の50日目に行う〙.

Pentecostal

Pen te cost al /pèntɪkɔ́ːst (ə )l |-kɔ́st -/形容詞〘キリスト教〙聖霊降臨節の ; ペンテコステ派の〘米国のfundamentalism系の各教派〙.～ì sm 名詞～ì st 名詞形容詞

penthouse

p é nt h ò use 名詞 C 1 ペントハウス, 屋上住宅〘ビルの最上階にある高級住宅アパート〙.2 差し掛け屋根 , 下屋（げや）; ひさし .

pent-up

p è nt- ú p 形容詞〈感情などが〉抑えられた, うっ積した .