noun, plural (especially collectively) car·di·nal·fish, (especially referring to two or more kinds or species) car·di·nal·fish·es.
any of the perchlike fishes of the family Apogonidae, many species of which are bright red with black markings.
- cardinal virtue,
- cardinal virtues,
- cardinal vowel,
- cardinal vowels,
- carding machine,
Origin of cardinalfish
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019