'Sea lion' definitions:

Definition of 'sea lion'

(from WordNet)
noun
Any of several large eared seals of the northern Pacific related to fur seals but lacking their valuable coat

Definition of 'Sea lion'

From: GCIDE
  • Sea lion \Sea" li"on\ (Zool.) Any one of several large species of seals of the family Otariidae native of the Pacific Ocean, especially the southern sea lion (Otaria jubata) of the South American coast; the northern sea lion (Eumetopias Stelleri) found from California to Japan; and the black, or California, sea lion (Zalophus Californianus), which is common on the rocks near San Francisco. [1913 Webster]

Definition of 'sea lion'

From: GCIDE