(n.) Any one of numerous species of Pennatula, Pteroides, and allied genera of Alcyonaria, having a featherlike form; a sea-pen. The zooids are situated along one edge of the side branches.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Pennatula. Retrieved September 23, 2026, from http://smartdefine.org/pennatula/definitions/2043377 |
| Chicago | Webster's. 2011. "Pennatula" http://smartdefine.org/pennatula/definitions/2043377 (accessed September 23, 2026). |
| Harvard | Webster's 2011, Pennatula, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/pennatula/definitions/2043377>. |
| MLA | Webster's. "Pennatula" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/pennatula/definitions/2043377> |