plural noun Arc·ti·i·dae \ärkˈtīəˌdē\

Definition of Arctiidae

  1. :  a large and variously delimited family of moths typically having stout bodies and broad wings often conspicuously striped or spotted, the larvae being usually hairy caterpillars — see tiger moth, woolly bear

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Origin and Etymology of arctiidae

New Latin, from Arctia, type genus (from Greek arktos bear + New Latin -ia) + -idae; from the furry appearance — more at arctic

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a trip made at another's expense

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