/lump"fish'/ , n. , pl. ( esp. collectively ) lumpfish , ( esp. referring to two or more kinds or species ) lumpfishes .
any of several thick-bodied, sluggish fishes of the family Cyclopteridae, found in northern seas, having the pelvic fins modified and united into a sucking disk, esp. Cyclopterus lumpus, of the North Atlantic.
[ 1735-45; LUMP 1 + FISH ]