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bivalve
bi·valve [ b vàlv ] (plural bi·valves)


noun 
Definition:
 
mollusk with hinged shell: a saltwater or freshwater invertebrate animal that has its body contained within two shells joined by a hinge. Oysters, mussels, and clams are bivalves.

bi·valved adjective
bi·val·vu·lar [ b válvyələr ] adjective
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