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Any of numerous freshwater and marine mollusks of the class Bivalvia, having a shell consisting of two hinged valves connected by a ligament, and including the clams, mussels, oysters, and scallops. Also called lamellibranch, pelecypod.
1. Having a shell consisting of two hinged valves.
2. Consisting of two similar separable parts.
(Zoology) Also: pelecypod or lamellibranch any marine or freshwater mollusc of the class Pelecypoda (formerly Bivalvia or Lamellibranchia), having a laterally compressed body, a shell consisting of two hinged valves, and gills for respiration. The group includes clams, cockles, oysters, and mussels
1. (Zoology) Also: pelecypod or lamellibranch of, relating to, or belonging to the Pelecypoda
2. (Zoology) biology Also: bivalvate having or consisting of two valves or similar parts: a bivalve seed capsule.
1. 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.adj.
2. having two shells, usu. united by a hinge.
3. having two similar parts hinged together.
A mollusk, such as a clam or oyster, whose shell consists of two halves hinged together. Compare univalve.
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|Noun||1.||bivalve - marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together|
mollusc, mollusk, shellfish - invertebrate having a soft unsegmented body usually enclosed in a shell
Bivalvia, class Bivalvia, class Lamellibranchia, class Pelecypoda, Lamellibranchia - oysters; clams; scallops; mussels
clam - burrowing marine mollusk living on sand or mud; the shell closes with viselike firmness
cockle - common edible, burrowing European bivalve mollusk that has a strong, rounded shell with radiating ribs
oyster - marine mollusks having a rough irregular shell; found on the sea bed mostly in coastal waters
ark shell - marine bivalve mollusk having a heavy toothed shell with a deep boat-like inner surface
blood clam - red-blooded clam
mussel - marine or freshwater bivalve mollusk that lives attached to rocks etc.
escallop, scollop, scallop - edible marine bivalve having a fluted fan-shaped shell that swim by expelling water from the shell in a series of snapping motions
piddock - marine bivalve that bores into rock or clay or wood by means of saw-like shells
|Adj.||1.||bivalve - used of mollusks having two shells (as clams etc.)|
univalve - used of mollusks, especially gastropods, as snails etc.