Search Dictionary
Definition of sea otter

sea otter

Plural:sea otters
JUMP TO:

sea otter Lexical Profile

• 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

Word Origin & Etymology

A descriptive compound of 'sea' and 'otter', used to distinguish this fully marine species from its primarily freshwater relatives (river otters).

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 Oct 15, 2026, from https://wordmom.com/dictionary/sea otter
Wordmom is your complete guide to the English language. Whether you're looking up a definition, searching for the perfect synonym, or unscrambling letters for a word game, our comprehensive suite of tools is designed to help you find the right word, every time.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE®, Words With Friends®, Wordle®, and related game titles or tournament codes are registered trademarks of their respective owners (including Hasbro, Mattel, Zynga, The New York Times, NASPA, and WESPA). Wordmom is an independent reference utility for educational and entertainment purposes, not affiliated with, sponsored, or endorsed by these entities. All game names are referenced strictly under nominative fair use for compatibility.