: any of a class (Holothurioidea) of echinoderms having a tough muscular elongate body with tentacles surrounding the mouth
called alsoholothurian
Illustration of sea cucumber
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Thousands of sea cucumbers have washed ashore, covering over two miles of beach, The Associated Press reported.—Ashley J. Dimella, FOXNews.com, 22 Oct. 2025 Townsend, 29, said of sea cucumbers that were among the dishes available in a video posted on her Instagram account that has since been deleted.—Peter Guo, NBC news, 17 Sep. 2025 Townsend said at one point regarding a dish featuring sea cucumbers.—Anna Lazarus Caplan, PEOPLE, 17 Sep. 2025 Some of the dishes included turtle, bull frogs and sea cucumber – all considered traditional ingredients in China and many other parts of the world.—Ben Church, CNN Money, 17 Sep. 2025 See All Example Sentences for sea cucumber
: any of a class of invertebrate sea animals that are echinoderms with a long tough flexible muscular body resembling a cucumber and having tentacles surrounding the mouth at one end
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