| Pronunciation: | | ârk shel
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 WordNet Dictionary |
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| | Definition: | |
[n] marine bivalve mollusk having a heavy toothed shell with a deep boat-like inner surface |
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| | See Also: | | Arca, bivalve, genus Arca, lamellibranch, pelecypod |
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| Webster's 1913 Dictionary |
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| | Definition: | | \Ark" shell`\ (Zo["o]l.)
A marine bivalve shell belonging to the genus {Arca} and its
allies.
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