hinged shell

См. также в других словарях:

• Mollusc shell — Closed and open shells of a marine bivalve, Petricola pholadiformis. A bivalve shell is composed of two hinged valves which are joined by a ligament …   Wikipedia

• clam|shell — «KLAM SHEHL», noun, adjective. –n. 1. the shell of a clam. 2. any small container shaped like a clamshell with a hinged lid: »Wellman has a growing business recycling high density polyethylene…But it has no current use for lightweight polystyrene …   Useful english dictionary

• Butterfly shell — Butterfly But ter*fly , n.; pl. {Butterflies}. [Perh. from the color of a yellow species. AS. buter fl[=e]ge, buttor fle[ o]ge; cf. G. butterfliege, D. botervlieg. See {Butter}, and {Fly}.] (Zo[ o]l.) A general name for the numerous species of… …   The Collaborative International Dictionary of English

• bivalve — I. adjective Date: 1661 being or having a shell composed of two valves II. noun Date: 1683 any of a class (Bivalvia syn. Pelecypoda) of typically marine mollusks (as clams, oysters, or scallops) that have a 2 valved hinged shell, are usually… …   New Collegiate Dictionary

• ostracod — [ ɒstrəkɒd] noun Zoology a minute aquatic crustacean of the class Ostracoda, which have a hinged shell from which the antennae protrude. Origin from mod. L. Ostracoda, from Gk ostrakōdēs testaceous , from ostrakon shell …   English new terms dictionary

• bivalve —   any animal with a two part, hinged shell …   Geography glossary

• valve — (n.) late 14c., one of the halves of a folding door, from L. valva section of a folding or revolving door, lit. that which turns, related to volvere to roll (see VULVA (Cf. vulva)). Sense extended 1610s to membranous fold regulating flow of… …   Etymology dictionary

• valve — noun 1》 a device for controlling the passage of fluid through a pipe or duct, especially an automatic device which allows movement in one direction only. 2》 a cylindrical mechanism to vary the effective length of the tube in a brass musical… …   English new terms dictionary

• box turtle — box′ tur tle n. ram any chiefly terrestrial North American turtle of the genus Terrapene, having a hinged shell that can be tightly shut. Also called box′ tor toise • Etymology: 1795–1805, amer …   From formal English to slang

• valve — ► NOUN 1) a device for controlling the passage of fluid through a pipe or duct. 2) a cylindrical mechanism to vary the effective length of the tube in a brass musical instrument. 3) Anatomy & Zoology a membranous fold which allows blood or other… …   English terms dictionary

• valved — valve ► NOUN 1) a device for controlling the passage of fluid through a pipe or duct. 2) a cylindrical mechanism to vary the effective length of the tube in a brass musical instrument. 3) Anatomy & Zoology a membranous fold which allows blood or… …   English terms dictionary