/ Dictionary / Index B black-headed fireworm: Meaning and Definition of Find definitions for: black'-head•ed fire'worm Pronunciation: (blak'hed"id). [key] See under(def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. blackhead black-headed gull Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language