ärkˈtīəˌdē noun plural
Usage: capitalized
Etymology: New Latin, from Arctia, type genus (from Greek arktos bear + New Latin -ia ) + -idae; from the furry appearance — more at arctic
: 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