/ Dictionary / Index B bonytail: Meaning and Definition of Find definitions for: bon•y•tail Pronunciation: (bō'nē-tāl"), [key] — n. a fish, Gila elegans, found in the Colorado River, having flaring fins and a thin caudal peduncle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bony labyrinth bonze Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language