plural noun
Nem·e·strin·i·dae | \-rinəˌdē\

Definition of Nemestrinidae 

: a family of dipterous insects occurring mostly in hot and arid regions and having larvae that are parasitic on other insects

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History and Etymology for Nemestrinidae

New Latin, from Nemestrinus, type genus (perhaps from Late Latin Nemestrinus, god of groves) + -idae

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