plural noun
Car·​di·​i·​dae | \ kärˈdīəˌdē \

Definition of Cardiidae

: 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

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History and Etymology for Cardiidae

New Latin, from Cardium, type genus + -idae

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Cite this Entry

“Cardiidae.” Dictionary, Merriam-Webster, Accessed 14 Aug. 2020.

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