/ Dictionary / Index C cardinalfish: Meaning and Definition of Find definitions for: car•di•nal•fish Pronunciation: (kär'dn-l-fish"), [key] — pl. -fish, -fish•es. any of the perchlike fishes of the family Apogonidae, many species of which are bright red with black markings. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cardinalfish (Thesaurus) cardinalate cardinal flower Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language