noun
1. : any of several large eared seals native to the Pacific ocean related to the fur seals but lacking their valuable coat and including several largely coastal members of the genera Zalophus (as the Australian Z. lobatus and the Californian Z. californianus ) and Otaria (as the So. American O. byronia or O. jubata ) — see steller's sea lion
2. : a heraldic representation of a monster having the forepart of a lion with web feet and the tail of a fish