sea lion

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of several large seals of the family Otariidae, having a blunter muzzle and a thinner coat than the fur seals, especially the California sea lion (Zalophus californianus).

from The Century Dictionary.

• noun One of several large eared seals, or otaries.
• noun In heraldry, a bearing representing a creature having a head like that of a lion, but sometimes without the mane, two paws with long claws, and fish-like body. Also called lion-poisson and morse.

from the GNU version of the Collaborative International Dictionary of English.

• (Zoöl.) Any one of several large species of seals of the family Otariidæ 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A marine mammal of any of several genera in the family Otariidae.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun any of several large eared seals of the northern Pacific related to fur seals but lacking their valuable coat