Zoology. any mollusk, as the oyster, clam, scallop, or mussel, of the class Bivalvia, having two shells hinged together, a soft body, and lamellate gills.
Botany. having two valves
, as a seedcase.
Zoology. having two shells, usually united by a hinge.
having two similar parts hinged together.
The shell of a bivalve is composed of calcium carbonate, and consists of two,
usually similar, parts called valves. These are joined together along one edge (
Bivalve (class Bivalvia), any of more than 15,000 species of clams, oysters,
mussels, scallops, and other members of the phylum Mollusca characterized by a
Bivalve mollusks (e.g., clams, oysters, mussels, scallops) have an external
covering that is a two-part hinged shell that contains a soft-bodied invertebrate.
(Bivalvia) are a group of molluscs that include clams, scallops, oysters, mussels, razor shells, cockles, venus shells, borers, trough shells and many others (some of which have yet to be identified). The shells of a bivalve
are made up of two halves that are ... More »
Anyone that has ever slurped down an oyster, worn a pearl around their neck, or
enjoyed the half-shells found on the beach has come into contact with bivalves.
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
Marine Species Identification Portal: information on thousands of different
species in the world's oceans and seas.
Bivalves belong to the invertebrate phylum Mollusca, which also includes snails,
squids, and octopuses. Some well-known bivalves include clams, scallops, ...
being or having a shell composed of two valves. See bivalve defined for kids.
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