: any of a class (Holothurioidea) of echinoderms having a tough muscular elongated body with tentacles surrounding the mouth
called alsoholothurian
Illustration of sea cucumber
Examples of sea cucumber in a Sentence
Recent Examples on the Web
Examples are automatically compiled from online sources to
show current usage.Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Every few minutes Baya would dive down to point out a foot-long sea cucumber, or a cluster of blue, black, and yellow sea stars scattered on the seabed.—Flora Stubbs, Travel + Leisure, 7 Feb. 2026 Thousands of sea cucumbers are overtaking the beach in a coastal town.—Staff, FOXNews.com, 23 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 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