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Definition of sea otter

sea otter

Plural:sea otters
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• noun

1

A heavily built marine mammal native to the coasts of the northern and eastern North Pacific Ocean, possessing the densest fur in the animal kingdom and known for floating on its back to crack open shells with rocks.

Example

"While kayaking along the California coast, we spotted a sea otter resting in the kelp canopy with a sea urchin resting on its chest."

• Nearby Words

sea lamprey
sea lavender
sea lion
sea otter
sea raven
sea robin
sea snake

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Sea otter. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/sea-otter
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