plural noun The·rev·i·dae \thə̇ˈrevəˌdē\

Definition of Therevidae

  1. :  a family of chiefly holarctic brachycerous two-winged flies constituted by the stiletto flies

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Origin and Etymology of therevidae

New Latin, from Thereva, type genus (from Greek thēreuein to hunt, from thēr wild animal) + -idae — more at fierce

Seen and Heard

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to cast off or become cast off

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