plural noun Troch·i·dae \ˈträkəˌdē\

Definition of Trochidae

  1. :  a family of marine gastropod mollusks (suborder Rhipidoglossa) with a conical operculate shell flattened at the base and having an oblique aperture and a very lustrous nacreous lining — see top shell, trochus

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Origin and Etymology of trochidae

New Latin, from Trochus, type genus + -idae

Seen and Heard

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to cast off or become cast off

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