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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Using a submersible, researchers filmed networks of anemones, starfish, and other marine life living on these weapons. Sujita Sinha, Interesting Engineering, 26 Sep. 2025 Amelia Hildt, 3, was busy looking around for a pelican and a starfish. Laylan Connelly, Oc Register, 25 Sep. 2025 The actress, 37, also wore nostalgic flip-flop wedges — all that was missing were her complementary starfish studs! Michelle Lee, PEOPLE, 15 Sep. 2025 The historic Bahia Honda bridge, which was completed in 1912 by Standard Oil founder Henry Flagler, still stands today and is a habitat for lobsters, starfish, sea turtles, and more. Teaghan Skulszki, Travel + Leisure, 6 Sep. 2025 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 5 Oct. 2025.

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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