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tridacna |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Tridacna \Tri*dac"na\, n. [L., pl., a kind of oysters, fr Gr ? eaten at three bites, ? tri- + ? to bite.] (Zo["o]l.) A genus of very large marine bivalve shells found on the coral reefs of the Indian and Pacific Oceans. One species ({T. gigas}) often weighs four or five hundred pounds, and is sometimes used for baptismal fonts. Called also {paw shell}, and {fountain shell}. From WordNet r 1.6 [wn]: Tridacna n : type genus of the family Tridacnidae: giant clams [syn: {Tridacna}, {genus Tridacna}]
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