Hol′o‐thu″ri‐an (?), a.(Zoöl.) Belonging to the Holothurioidea. — n. One of the Holothurioidea.
☞ 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.