noun
large marine hard-shell clams
• Syn: ↑family Tridacnidae
• Hypernyms: ↑mollusk family
• Member Holonyms: ↑Bivalvia, ↑class Bivalvia, ↑Lamellibranchia, ↑class Lamellibranchia, ↑class Pelecypoda
• Member Meronyms: ↑Tridacna, ↑genus Tridacna
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\\-nəˌdē\ noun pluralUsage: capitalized
: a small family of chiefly tropical thick-shelled marine bivalve mollusks (suborder Cardiacea) — see tridacna
Useful english dictionary. 2012.