sea otter

noun

: a rare marine otter (Enhydra lutris) of the northern Pacific coasts that may attain a length of six feet (two meters), is chiefly brown but with lighter coloration on the back of the head and neck, and feeds largely on shellfish

Examples of sea otter in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The new drone show celebrating marine life and ocean conservation will feature aerial depictions of sea otters, sharks, dolphins and orcas. Brady MacDonald, Oc Register, 1 May 2026 The aerial light displays will depict several familiar animals housed at SeaWorld, including sea otters, sharks, dolphins and an orca. Lori Weisberg, San Diego Union-Tribune, 30 Apr. 2026 In 2020, the two institutions agreed to expand Monterey Bay’s sea otter surrogacy program southward. Cierra Morgan, Los Angeles Times, 29 Apr. 2026 Endangered Southern sea otters can be found along the California coast from San Mateo County to Santa Barbara County. Sarah Linn, Sacbee.com, 22 Apr. 2026 See All Example Sentences for sea otter

Word History

First Known Use

1664, in the meaning defined above

Time Traveler
The first known use of sea otter was in 1664

Browse Nearby Words

Cite this Entry

“Sea otter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sea%20otter. Accessed 3 May. 2026.

Kids Definition

sea otter

noun
: a large marine otter of northern Pacific coasts that feeds mostly on shellfish (as clams, crabs, and sea urchins) and can grow to nearly six feet (two meters) in length

More from Merriam-Webster on sea otter

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster