pl. (see fish) -·fish·, -·fish·es
any of a family (Acanthuridae) of edible, usually brightly colored, tropical percoid sea fishes with one or more movable, lancelike spines on either side of the base of the tail
nounpl. surgeonfish surgeonfish or sur·geon·fish·es
Any of various brightly colored tropical marine fishes of the family Acanthuridae, having a laterally compressed body with one or more sharp erectile spines near the base of the tail, and often kept in home aquariums. Also called tang.
Origin of surgeonfishFrom its lancetlike spines, which resemble surgeons' instruments.
(plural surgeonfishes or surgeonfish)