TRIDACNA

Tridacna, genus Tridacna

(noun) type genus of the family Tridacnidae: giant clams

Source: WordNet® 3.1

Etymology

From the genus name.

Noun

tridacna (plural tridacnas)

Any member of the genus Tridacna of large saltwater clams with heavy fluted shells.

Anagrams

• antacrid, cardiant, radicant

Source: Wiktionary

Tri*dac"na, n. Etym: [L., pl., a kind of oysters, fr. Gr. (Zoöl.)

Definition: 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.

Source: Webster’s Unabridged Dictionary 1913 Edition