1. any of several large eared seals, as Eumetopias jubatus (Steller's sea lion) , of the northern Pacific, and Zalophus californicus (California sea lion) , of the Pacific coast of North America.
2. Heraldry. a monster having the forepart of a lion, webbed forepaws, and the dorsal fin and tail of a fish.
[ 1595-1605 ]