capitalized : a genus of marine bivalves (family Tridacnidae) having no anterior adductor muscle and an equivalve shell the valves of which are very thick and heavy and strongly plicated at the margin see giant clam
plural -s : any mollusk of the genus Tridacna : giant clam

Word History


New Latin, from Latin, an oyster, from Greek tridaknos eaten at three bites, from tri- three + -daknos (from daknein to bite)

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Dictionary Entries Near tridacna

Cite this Entry

“Tridacna.” Dictionary, Merriam-Webster, Accessed 21 May. 2024.

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