noun, plural (especially collectively) file·fish, (especially referring to two or more kinds or species) file·fish·es.
- any of several flattened marine fishes of the family Monacanthidae, having an elongated head with a small mouth and small, spiny scales.
- a triggerfish.
noun plural -fish or -fishes
- any tropical triggerfish, such as Alutera scripta, having a narrow compressed body and a very long dorsal spine