nounpl. -·fish· or -·fish·es (see fish)
any of a percoid family (Chaetodontidae) of small, brightly colored, usually yellow, tropical reef fishes
also written butterfly fish
- Any of various small tropical marine fishes of the family Chaetodontidae, having a laterally compressed body with bright colors and patterns.
- Any of various fishes with broad winglike fins.
(plural butterflyfishes or butterflyfish)