[vahy-per-fish] 
) -fish, (especially referring to two or more kinds or species) -fish⋅es. | any of several deep-sea fishes of the family Chauliodontidae, having a large mouth and fanglike teeth, some species having light-emitting organs on their bodies. |
| vi·per·fish (vī'pər-fĭsh') n. pl. viperfish or vi·per·fish·es Any of various small deep-sea fish of the family Chauliodontidae, having fanglike teeth, a long first ray of the dorsal fin, and photophores along the sides. |