(n.pl.) One of the classes of echinoderms.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Holothurioidea. Retrieved September 21, 2026, from http://smartdefine.org/holothurioidea/definitions/2017020 |
| Chicago | Webster's. 2011. "Holothurioidea" http://smartdefine.org/holothurioidea/definitions/2017020 (accessed September 21, 2026). |
| Harvard | Webster's 2011, Holothurioidea, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/holothurioidea/definitions/2017020>. |
| MLA | Webster's. "Holothurioidea" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/holothurioidea/definitions/2017020> |