plural noun
Ten·​thre·​din·​i·​dae | \ ˌten(t)thrəˈdinəˌdē\

Definition of Tenthredinidae

: a family of Hymenoptera comprising all the sawflies or now more commonly including various typical sawflies — see tenthredinoidea

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History and Etymology for Tenthredinidae

New Latin Tenthredin-, Tenthredo, type genus (from Greek tenthrēdōn, a kind of wasp) + -idae

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to boil down or concentrate

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