English-Thai Dictionary

conchoid

N กราฟ รูป เส้น ลาย หอย 

 

conchology

N วิชา ที่ ศึกษา เกี่ยวกับ สัตว์ พวก หอย 

 

Webster's 1828 Dictionary

CONCHOID

n.[Gr. , form. ] The name of a curve, given to it by its inventor Nicomedes.

 

CONCHOIDAL

a.In mineralogy, resembling a conch or marine shell; having convex elevations and concave depressions, like shells; as a conchoidal fracture.

 

CONCHOLOGICAL

a.[See Conchology. ] Pertaining to conchology.

 

CONCHOLOGIST

n.One versed in the natural history of shells or shell-fish; one who studies the nature, properties and habits of shells and their included animals.

 

CONCHOLOGY

n.[Gr. A shell and discourse. ] The doctrine or science of shells and shellfish.

 

CONCHOMETER

n.[Gr. , a shell, and to measure. ] An instrument for measuring shells.

 

Webster's 1913 Dictionary

CONCHOID

Con "choid, n. Etym: [Gr. conchoïde.] (Geom.)

 

Defn: A curve, of the fourth degree, first made use of by the Greek geometer, Nicomedes, who invented it for the purpose of trisecting an angle and duplicating the cube.

 

CONCHOIDAL

Con *choid "al, a. Etym: [Cf. F. conchoïdal.] (Min. )

 

Defn: Having elevations or depressions in form like one half of a bivalve shell; -- applied principally to a surface produced by fracture.

 

CONCHOLOGICAL

CONCHOLOGICAL Con `cho *log "ic *al, a. (Zoöl.)

 

Defn: Pertaining to, or connected with, conchology.

 

CONCHOLOGIST

CONCHOLOGIST Con *chol "o *gist, n. (Zoöl.)

 

Defn: One who studies, or is versed in, conchology.

 

CONCHOLOGY

Con *chol "o *gy, n. Etym: [Conch + -logy. ] (Zoöl.)

 

Defn: The science of Mollusca, and of the shells which they form; malacology.

 

CONCHOMETER

Con *chom "e *ter, n. Etym: [Conch + -meter. ] (Zoöl.)

 

Defn: An instrument for measuring shells, or the angle of their spire.

 

CONCHOMETRY

CONCHOMETRY Con *chom "e *try, n. (Zoöl.)

 

Defn: The art of measuring shells or their curves; conchyliometry.

 

CONCHO-SPIRAL

CONCHO-SPIRAL Con `cho-spi "ral, n.

 

Defn: A kind of spiral curve found in certain univalve shells. Agassiz.

 

New American Oxford Dictionary

concho belt

conch o belt |ˈkänCHō ˈkɑntʃoʊbelt | ▶noun a belt decorated with conchas or representations of them.

 

conchoid

con choid |ˈkäNGˌkoid ˈkɑŋkɔɪd | ▶noun Mathematics a plane quartic curve consisting of two separate branches either side of and asymptotic to a central straight line (the asymptote ), such that if a line is drawn from a fixed point (the pole ) to intersect both branches, the part of the line falling between the two branches is of constant length and is exactly bisected by the asymptote. [Such curves are represented by the general equation ( x − a )2 ( x 2 + y 2 ) = b 2 x 2, where a is the distance between the pole and the asymptote, and b is the constant length. The branch on the same side of the asymptote as the pole typically has a cusp or loop. ] ORIGIN early 18th cent.: from conch + -oid .

 

conchoidal

con choi dal |käNGˈkoidl kɑŋˈkɔɪdl | ▶adjective chiefly Mineralogy denoting a type of fracture in a solid (such as flint or quartz ) that results in a smooth rounded surface resembling the shape of a scallop shell.

 

conchology

con chol o gy |käNGˈkäləjē kɑŋˈkɑləʤi | ▶noun the scientific study or collection of mollusk shells. Compare with malacology. DERIVATIVES con cho log i cal |ˌkäNGkəˈläjikəl |adjective, con chol o gist |-jist |noun ORIGIN late 18th cent.: from Greek konkhē ‘shell ’ + -logy .

 

Oxford Dictionary

concho belt

conch o belt |ˈkänCHō ˈkɑntʃoʊbelt | ▶noun a belt decorated with conchas or representations of them.

 

conchoid

conchoid |ˈkɒŋkɔɪd | ▶noun Mathematics a plane quartic curve consisting of two separate branches either side of and asymptotic to a central straight line (the asymptote ), such that if a line is drawn from a fixed point (the pole ) to intersect both branches, the part of the line falling between the two branches is of constant length and is exactly bisected by the asymptote. ●Such curves are represented by the general equation ( x − a )2 ( x 2 + y 2 ) = b 2 x 2, where a is the distance between the pole and the asymptote, and b is the constant length. The branch on the same side of the asymptote as the pole typically has a cusp or loop. ORIGIN early 18th cent.: from conch + -oid .

 

conchoidal

conchoidal |kɒŋˈkɔɪd (ə )l | ▶adjective chiefly Mineralogy denoting a type of fracture in a solid (such as flint ) which results in a smooth rounded surface resembling the shape of a scallop shell.

 

conchology

conchology |kɒŋˈkɒlədʒi | ▶noun [ mass noun ] the scientific study or collection of mollusc shells. DERIVATIVES conchological |-kəˈlɒdʒɪk (ə )l |adjective, conchologist noun ORIGIN late 18th cent.: from Greek konkhē ‘shell ’ + -logy .

 

Spanish Dictionary

concho

concho nombre masculino 1 Amér Borra que deja el té, el café, el vino u otras bebidas en el fondo de una taza o de un vaso :(fig ) la pura firmeza que está como un concho en el fondo de mi vaso .SINÓNIMO poso .2 Amér Sobras de comida que quedan en el plato u otro recipiente después de haber comido :el concho de arroz .3 Ecuad coloquial Túnica de la mazorca de maíz .4 RDom Automóvil de servicio público que transporta de un lugar a otro a las personas que lo solicitan a cambio de dinero; generalmente está provisto de un taxímetro que indica el importe del viaje .SINÓNIMO taxi .