- bivalve, bivalved - used of mollusks having two shells (as clams etc.)
Antonyms: univalve, single-shelled
- 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
--1 has particulars:Bivalvia, class Bivalvia, Lamellibranchia, class Lamellibranchia, class Pelecypoda clam; cockle; oyster; ark shell; blood clam; mussel; scallop, scollop, escallop; piddock