Hypertext Webster Gateway: "pelecypod"
From WordNet (r) 1.7 (wn)
pelecypod
adj : bivalve [syn: {lamellibranch}, {pelecypodous}]
n : marine or freshwater mollusks having a soft body with
platelike gills enclosed within two shells hinged
together [syn: {bivalve}, {lamellibranch}]
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