sea hare


Definition of sea hare

: any of various large opisthobranch mollusks (especially genus Aplysia) that have an arched back and two anterior tentacles and have the shell much reduced or missing

Examples of sea hare in a Sentence

Recent Examples on the Web

This is wrong; Aplysia is a sea hare, a group within the sea slugs. John Timmer, Ars Technica, "Researchers claim to have transferred a memory between two sea slugs," 16 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sea hare.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of sea hare

1593, in the meaning defined above

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Time Traveler for sea hare

The first known use of sea hare was in 1593

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More from Merriam-Webster on sea hare

Rhyming Dictionary: Words that rhyme with sea hare Encyclopedia article about sea hare

Comments on sea hare

What made you want to look up sea hare? Please tell us where you read or heard it (including the quote, if possible).


a shady place in a garden or forest

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