| either of two seals of the genus Mirounga, of the Pacific coast of North America and the Antarctic Ocean, having a curved proboscis resembling an elephant's trunk. |
| elephant seal n. Either of two large seals, Mirounga angustirostris mainly of Pacific coastal waters of California or M. leonina of coastal waters of the Southern Hemisphere, the males of which have an inflatable, trunklike proboscis. Also called sea elephant. |
