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
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Each day offers the chance to spot wolves, sea otters, humpback whales, and bald eagles both from shore and at sea. Susan Portnoy, AFAR Media, 3 Oct. 2025 Later this year, the zoo is preparing to open a North American exhibit that will feature black bear cubs and sea otters and building a Mexican wolf exhibit, which will open to the public next year. Elizabeth B. Kim, Cincinnati Enquirer, 26 Sep. 2025 The giant sea stars, recognizable for their many arms, kept the urchin population in check, with the help of sea otters, lobsters and some large fishes. Rebecca Vega Thurber, The Conversation, 26 Sep. 2025 My first day on the water was mostly spent looking for bears and other wildlife, eventually making do with a gaggle of sea otters floating across the water and the occasional bald eagle overhead. Robert Annis, Outside, 5 Sep. 2025 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

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Cite this Entry

“Sea otter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sea%20otter. Accessed 17 Oct. 2025.

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

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