Also found in: Thesaurus, Wikipedia.
(Animals) any large primitive shark, esp Hexanchus griseum, of the family Hexanchidae of warm and temperate waters. Also called: six-gilled shark
Switch to new thesaurus
|Noun||1.||cow shark - large primitive shark widely distributed in warm seas|
shark - any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough skin covered with small toothlike scales