noun
somewhat heart-shaped sand-burrowing bivalve mollusks
• Syn: ↑family Cardiidae
• Hypernyms: ↑mollusk family
• Member Holonyms: ↑Bivalvia, ↑class Bivalvia, ↑Lamellibranchia, ↑class Lamellibranchia, ↑class Pelecypoda
• Member Meronyms: ↑Cardium, ↑genus Cardium
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\\kärˈdīəˌdē\ noun pluralUsage: capitalized
: a family of marine bivalve mollusks (order Eulamellibranchia) that have an equivalve ribbed shell with prominent umbones, a large foot adapted for creeping over sandy bottoms, and much-folded gills and that include the true cockles
Useful english dictionary. 2012.