[fahyl-fish] 
) -fish, (especially referring to two or more kinds or species) -fish⋅es. | 1. | any of several flattened marine fishes of the family Monacanthidae, having an elongated head with a small mouth and small, spiny scales. |
| 2. | a triggerfish. |
| file·fish (fīl'fĭsh') n. pl. filefish or file·fish·es Any of various chiefly tropical marine fishes of the family Balistidae, related to and resembling the triggerfishes, with a flat body and rough spiny scales. |