plural noun
Thy·​rid·​i·​dae | \-dəˌdē\

Definition of Thyrididae 

: a family of small moths having the wings marked with translucent spots

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History and Etymology for Thyrididae

New Latin, from Thyrid-, Thyris, type genus (from Greek thyrid-, thyris window, diminutive of thyra door) + -idae

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living or existing for a long time

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