bivalve mollusk

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• Bivalve shell — The bivalve shell is one kind of seashell, and in life it is composed of two parts, two valves. The bivalve shell is part of the body, the exoskeleton, of a bivalve mollusk. Bivalves are a common part of the marine fauna worldwide (scallops,… …   Wikipedia

• Bivalve — Bi valve, n. [F. bivalve; bi (L. bis) + valve valve.] 1. (Zo[ o]l.) A mollusk having a shell consisting of two lateral plates or valves joined together by an elastic ligament at the hinge, which is usually strengthened by prominences called teeth …   The Collaborative International Dictionary of English

• bivalve — (adj.) 1660s in reference to mollusks with double shells; 1670s in reference to shutters or doors; from BI (Cf. bi ) + VALVE (Cf. valve). The noun is 1680s in the mollusk sense …   Etymology dictionary

• bivalve — bivalvular /buy val vyeuh leuhr/, adj. /buy valv /, n. 1. Also called lamellibranch. Zool. any mollusk, as the oyster, clam, scallop, or mussel, of the class Bivalvia, having two shells hinged together, a soft body, and lamellate gills. adj. 2.… …   Universalium

• mollusk — molluskan, molluscan /meuh lus keuhn/, adj., n. mollusklike, adj. /mol euhsk/, n. any invertebrate of the phylum Mollusca, typically having a calcareous shell of one, two, or more pieces that wholly or partly enclose the soft, unsegmented body,… …   Universalium

• mollusk — noun invertebrate having a soft unsegmented body usually enclosed in a shell • Syn: ↑mollusc, ↑shellfish • Hypernyms: ↑invertebrate • Hyponyms: ↑scaphopod, ↑gastropod, ↑ …   Useful english dictionary

• bivalve — bi·valve || baɪvælv adj. having two shells that are hinged together in the middle (of certain kinds of mollusks) n. mollusk with two shells that are hinged together in the middle (Zoology) …   English contemporary dictionary

• bivalve — bi•valve [[t]ˈbaɪˌvælv[/t]] n. 1) ivt any mollusk, as the oyster or mussel, of the class Bivalvia, having hinged lateral shells, a soft body enclosed by a mantle, sheetlike gills, and often a retractile foot 2) zool. having two shells, usu.… …   From formal English to slang

• coquina clam — ▪ mollusk       any bivalve mollusk of the genus Donax. These marine invertebrates inhabit sandy beaches along coasts worldwide. A typical species, Donax variabilis, measures only about 10 to 25 mm (0.4 to 1 inch) in length. Its shell is wedge… …   Universalium

• muscle — muscleless, adj. muscly, adj. /mus euhl/, n., v., muscled, muscling, adj. n. 1. a tissue composed of cells or fibers, the contraction of which produces movement in the body. 2. an organ, composed of muscle tissue, that contracts to produce a… …   Universalium

• Pearl — For other uses, see Pearl (disambiguation). Pearl Pearls General Category Mineral Chemical formula Ca …   Wikipedia