plural noun Cal·yp·trae·i·dae \ˌkalə̇pˈtrēəˌdē\

Definition of Calyptraeidae

  1. :  a family (order Pectinibranchia) of limpetlike marine gastropod mollusks having a curved internal lamina in the shell — see cup-and-saucer limpet

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Origin and Etymology of calyptraeidae

New Latin, from Calyptraea, type genus (irregular from Greek kalyptra) + -idae

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to cast off or become cast off

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