Hol·o·thu·ri·an a. Zool. Belonging to the Holothurioidea. -- n. One of the Holothurioidea.
Note: ☞ Some of the species of Holothurians are called sea cucumbers, sea slugs, trepang, and bêche de mèr. Many are used as food, esp. by the Chinese. See Trepang.
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