pl. (see fish) -·fish·, -·fish·es
any of an order (Myxiniformes) of small, marine, eel-like jawless fishes, with a round, sucking mouth and horny teeth
Origin of hagfishhag + fish
nounpl. hagfish or hag·fish·es
Any of various elongated slimy marine fishes of the class Myxini (family Myxinidae), lacking jaws and vertebrae and having a sucking mouth with toothlike rasps, used for feeding on invertebrates and for burrowing into or scavenging other fish.
Origin of hagfishhag1 + fish.