plural noun
Rhag·​i·​on·​i·​dae | \ ˌrajēˈänəˌdē\

Definition of Rhagionidae

: a widely distributed family of predaceous two-winged flies having usually a tapering body, long slender legs, and sometimes a conspicuous downward-projecting proboscis

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History and Etymology for Rhagionidae

New Latin, from Rhagion-, Rhagio, type genus (from Greek rhagion, a spider, diminutive of rhag-, rhax malmignatte, grape, berry) + -idae

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