/ Dictionary / Index W woolly bear: Meaning and Definition of Find definitions for: wool'ly bear" Pronunciation: [key] the caterpillar of any of several moths, as a tiger moth, having a dense coat of woolly hairs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. woolly aphid woollybutt Related Content Daily Word Quiz: frowzy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language