Definitions of bivalve
  1. noun
    marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together
    synonyms: lamellibranch, pelecypod
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    burrowing marine mollusk living on sand or mud; the shell closes with viselike firmness
    common edible, burrowing European bivalve mollusk that has a strong, rounded shell with radiating ribs
    marine mollusks having a rough irregular shell; found on the sea bed mostly in coastal waters
    ark shell
    marine bivalve mollusk having a heavy toothed shell with a deep boat-like inner surface
    blood clam
    red-blooded clam
    marine or freshwater bivalve mollusk that lives attached to rocks etc.
    escallop, scallop, scollop
    edible marine bivalve having a fluted fan-shaped shell that swim by expelling water from the shell in a series of snapping motions
    marine bivalve that bores into rock or clay or wood by means of saw-like shells
    Mya arenaria, long-neck clam, soft-shell clam, steamer, steamer clam
    an edible clam with thin oval-shaped shell found in coastal regions of the United States and Europe
    Mercenaria mercenaria, Venus mercenaria, hard clam, hard-shell clam, quahaug, quahog, round clam
    an edible American clam; the heavy shells were used as money by some American Indians
    a large edible clam found burrowing deeply in sandy mud along the Pacific coast of North America; weighs up to six pounds; has siphons that can extend to several feet and cannot be withdrawn into the shell
    jackknife clam, knife-handle, razor clam
    marine clam having a long narrow curved thin shell
    Tridacna gigas, giant clam
    a large clam inhabiting reefs in the southern Pacific and weighing up to 500 pounds
    Cardium edule, edible cockle
    common edible European cockle
    seed oyster
    a young oyster especially of a size for transplantation
    blue point, bluepoint
    small edible oyster typically from the southern shore of Long Island
    Japanese oyster, Ostrea gigas
    a large oyster native to Japan and introduced along the Pacific coast of the United States; a candidate for introduction in Chesapeake Bay
    Virginia oyster
    common edible oyster of Atlantic coast of North America
    Pinctada margaritifera, pearl oyster
    tropical marine bivalve found chiefly off eastern Asia and Pacific coast of North America and Central America; a major source of pearls
    Anomia ephippium, saddle oyster
    thin-shelled bivalve having the right valve deeply notched
    Placuna placenta, capiz, window oyster, windowpane oyster
    marine bivalve common in Philippine coastal waters characterized by a large thin flat translucent shell
    marine mussel, mytilid
    marine bivalve mollusk having a dark elongated shell; live attached to solid objects especially in intertidal zones
    freshwater clam, freshwater mussel
    bivalve mollusk abundant in rivers of central United States
    Pecten irradians, bay scallop
    a small scallop inhabiting shallow waters and mud flats of the Atlantic coast of North America
    Pecten magellanicus, giant scallop, sea scallop
    a large scallop inhabiting deep waters of the Atlantic coast of North America
    shipworm, teredinid
    wormlike marine bivalve that bores into wooden piers and ships by means of drill-like shells
    type of:
    mollusc, mollusk, shellfish
    invertebrate having a soft unsegmented body usually enclosed in a shell
  2. adjective
    used of mollusks having two shells (as clams etc.)
    synonyms: bivalved
    lamellibranch, pelecypod, pelecypodous
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    used of mollusks, especially gastropods, as snails etc.
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