Hypertext Webster Gateway: "Tridacna"
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) 1.7 (wn)
Tridacna
n : type genus of the family Tridacnidae: giant clams [syn: {Tridacna},
{genus Tridacna}]
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