plural noun
Xiph·​y·​dri·​idae | \ ˌzifəˌdrīəˌdē\

Definition of Xiphydriidae

: a small family of horntails comprising the wood wasps and characterized by a thorax humped in front resembling a neck

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History and Etymology for Xiphydriidae

New Latin, from Xiphydria, type genus (from Greek xiphydrion, a shell fish, from xiphos sword) + -idae

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