Definitions for hagfishˈhægˌfɪʃ
Random House Webster's College Dictionary
any eel-shaped jawless fish of the order Myxiniformes, having a round, sucking mouth and rasping tongue for boring into the flesh of other fishes.
Origin of hagfish:
hagfish, hag, slime eels(noun)
eellike cyclostome having a tongue with horny teeth in a round mouth surrounded by eight tentacles; feeds on dead or trapped fishes by boring into their bodies
any of several primitive eellike creatures, of the family Myxinidae, having a sucking mouth with rasping teeth; considered edible in Japan, their skin is used to make a form of leather