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Holothurioidea

plural noun
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Hol·​o·​thu·​ri·​oi·​dea

Definition of Holothurioidea

: a class of echinoderms comprising the sea cucumbers and having a more or less elongate form usually with well-marked bilateral symmetry and differentiated dorsal and ventral surfaces, a flexible but tough and muscular body with the skeleton reduced to scattered ossicles or spicules, a water-vascular system with radial ambulacral vessels and tube feet for creeping, respiratory trees, Cuvierian organs, and strong branched tentacles about the mouth — compare trepang

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History and Etymology for Holothurioidea

New Latin, from Holothuria + -oidea

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Dictionary Entries Near Holothurioidea

holothurioid

Holothurioidea

Holothuroidea

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Cite this Entry

“Holothurioidea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Holothurioidea. Accessed 20 Aug. 2022.

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