Any of various fishes of the family Stromateidae having tender oily flesh, especially Peprilus triacanthus of the North American Atlantic coast.
Any of various other fishes having oily flesh or slippery skin.
Any of various fishes (esp. family Stromateidae) with a slippery, protective covering of mucus, as a gunnel.
Any of various species of fish having a slippery mucous coating, especially.
Origin of butterfish
Originally applied to a species of gunnel found in British waters, noted for its slippery coating of mucus