(n.pl.) An extensive order of Porifera, which includes those that have the skeleton composed mainly of siliceous fibers or spicules.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Silicoidea. Retrieved September 23, 2026, from http://smartdefine.org/silicoidea/definitions/2062041 |
| Chicago | Webster's. 2011. "Silicoidea" http://smartdefine.org/silicoidea/definitions/2062041 (accessed September 23, 2026). |
| Harvard | Webster's 2011, Silicoidea, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/silicoidea/definitions/2062041>. |
| MLA | Webster's. "Silicoidea" 28 May 2011. Web. 23 September 2026. <http://smartdefine.org/silicoidea/definitions/2062041> |