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:

Diving in the sapphire waters around it is the increasingly scarce Australian sea lion.

From BBC Aug. 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

“Chonkers” is a Steller sea lion, which is a heftier variety of the species, compared to his California sea lion counterparts.

From Los Angeles Times Apr. 30, 2026

Stellar sea lion pups are born from mid-May to mid-July and usually weigh 35 to 50 pounds, according to the center.

From Los Angeles Times Apr. 30, 2026

Sure, when it gets wet, you kind of resemble a droopy sea lion, but at least it isn’t pink and lime green like Linda’s swimsuit is.

From "Saints and Misfits" by S.K. Ali

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember new words for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com