plural noun Pin·ni·dae \ˈpinəˌdē\

Definition of Pinnidae

  1. :  a family of chiefly tropical marine bivalve mollusks (suborder Ostraeacea) that live in bottom sediment — see pinna

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Origin and Etymology of pinnidae

New Latin, from Pinna, type genus + -idae

Seen and Heard

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a trip made at another's expense

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