: 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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Three other new sea cucumber species were identified and described in the same study.—Irene Wright, Miami Herald, 14 Mar. 2025 Bring the family and experience an up- close and personal encounter with LEC’s sea urchins, sea stars, and sea cucumbers.—Joe Rassel, The Orlando Sentinel, 2 Apr. 2025 Researchers suggested follow-up surveys both for deep-sea sea cucumbers specifically and for exploring marine life in the region more generally.—Aspen Pflughoeft, Miami Herald, 31 Jan. 2025 In recent years, sea cucumbers — which are sold as a delicacy in southeast Asia — have become more lucrative, bringing in far more money than fish.—Sira Thierij, NPR, 26 Dec. 2024 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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