Dictionary.com
Thesaurus.com

sea lion

American  

noun

sea lions plural
  1. any of several large eared seals, as Eumetopias jubatus Steller's sea lion, of the northern Pacific Ocean, 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.


sea lion British  

noun

  1. any of various large eared seals, such as Zalophus californianus ( Californian sea lion ), of the N Pacific, often used as a performing animal

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of sea lion

First recorded in 1595–1605

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

On Isabela Island, a local sea lion known as Panchito has become famous for commandeering the loungers at Cormorant Beach House.

From The Wall Street Journal Jul. 13, 2026

But I do cherish thoughts of snorkeling with playful sea lion pups.

From Los Angeles Times Jul. 8, 2026

The finals day of the World Surf League's New Zealand Pro event was paused after a photographer was attacked in the water by a sea creature that organisers believe was a shark or sea lion.

From BBC May 25, 2026

A particularly massive sea lion has Bay Area tourists and residents flocking to Pier 39 in San Francisco to spot the mammal affectionately named “Chonkers.”

From Los Angeles Times Apr. 30, 2026

Suddenly the gap disappeared in a swirling, thrashing sea lion storm.

From "Nim’s Island" by Wendy Orr

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training