Adjective bivalve has 1 sense
  1. bivalve, bivalved - used of mollusks having two shells (as clams etc.)
    Antonyms: univalve, single-shelled
,Noun bivalve has 1 sense
  1. bivalve, pelecypod, lamellibranch - marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together
    --1 is a kind of mollusk, mollusc, shellfish
    --1 is a member of
     Bivalvia, class Bivalvia, Lamellibranchia, class Lamellibranchia, class Pelecypoda
    --1 has particulars:
     clam; cockle; oyster; ark shell; blood clam; mussel; scallop, scollop, escallop; piddock
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