Definitions for: Tridacna

[n] type genus of the family Tridacnidae: giant clams

Webster (1913) Definition: 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.

Synonyms: genus Tridacna

See Also: family Tridacnidae, giant clam, mollusk genus, Tridacna gigas, Tridacnidae

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