/ Dictionary / Index C cornetfish: Meaning and Definition of Find definitions for: cor•net•fish Pronunciation: (kôr-net'fish"), [key] — pl. -fish, -fish•es. any of several slender fishes of the family Fistulariidae, of tropical seas, having an elongated snout and bony plates instead of scales. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cornetfish (Thesaurus) cornet-à-pistons cornetist Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language