CONCHININE Con"chi*nine ( or ), n. Etym: [Formed by transposition fr. cinchonine.]
Defn: See Quinidine.
CONCHITE
Con"chite, n. Etym: [Cf. F. conchite. See Conch.] (Paleon.)
Defn: A fossil or petrified conch or shell.
CONCHITIC
Con*chit"ic, a.
Defn: Composed of shells; containing many shells.
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.