English dictionary
bivalve
/'b/aI/,v/&/lv/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
adjective
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used of mollusks having two shells (as clams etc.)
Source: WordNet 3.0
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Having two shells or valves which open and shut, as the oyster and certain seed vessels.
Source: webster1913
noun
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marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together
Source: WordNet 3.0
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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 <i>teeth</i>. The shell is closed by the contraction of two transverse muscles attached to the inner surface, as in the clam, -- or by one, as in the oyster. See Mollusca.
Source: webster1913