Pronunciation: (kat'fish"),[key] —n.pl.(esp. collectively)-fish,(esp. referring to two or more kinds or species)-fish•es. 1. any of the numerous fishes of the order or suborder Nematognathi (or Siluroidei), characterized by barbels around the mouth and the absence of scales.
2. a wolffish of the genus Anarhichas. 3. any of various other fishes having a fancied resemblance to a cat.