English to English Dictionary -conchoid

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Concho-spiral :: Concho-spiral (n.) A kind of spiral curve found in certain univalve shells.

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

Conchological :: Conchological (a.) Pertaining to, or connected with, conchology..

Conchologist :: Conchologist (n.) One who studies, or is versed in, conchology..

Conchology :: Conchology (n.) The science of Mollusca, and of the shells which they form; malacology..

Conchometer :: Conchometer (n.) An instrument for measuring shells, or the angle of their spire..

Conchometry :: Conchometry (n.) The art of measuring shells or their curves; conchyliometry.