starfish

noun

star·​fish ˈstär-ˌfish How to pronounce starfish (audio)
: any of a class (Asteroidea) of echinoderms that have a body of usually five arms radially arranged about a central disk and feed largely on mollusks (such as oysters)

called also sea star

Examples of starfish in a Sentence

Recent Examples on the Web
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The geyser was named after mineralogist Albert Charles Peale visited the geyser in 1878 and thought the rocks surrounding it resembled sea urchins, a group of animals that also contain starfish, brittle stars and sand dollars. Julia Jacobo, ABC News, 3 Mar. 2026 Lilian saw that Hazel did not join the children in photographing the starfish. Yiyun Li, New Yorker, 1 Mar. 2026 Where a good firm stone would help the snail push back against the starfish and right herself again, the sand would slither out from under or close over her; and the starfish would bear down, extruding its stomach to engulf her, its digestive juices dissolving her alive. Literary Hub, 23 Feb. 2026 Rooms come with Botanist & The Chemist toiletries, miniature fluffy robes, a signature purple starfish soft toy, and copious sweet treats, from white chocolate caryatids to cones of M&M’s. Jemima Sissons, Condé Nast Traveler, 8 Jan. 2026 See All Example Sentences for starfish

Word History

First Known Use

1538, in the meaning defined above

Time Traveler
The first known use of starfish was in 1538

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Cite this Entry

“Starfish.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/starfish. Accessed 9 Mar. 2026.

Kids Definition

starfish

noun
star·​fish ˈstär-ˌfish How to pronounce starfish (audio)
: any of a class of echinoderms that have five arms arranged evenly around a central disk and feed largely on mollusks (as oysters)

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