(n.pl.) An order of fishes having some of the rays of the dorsal, ventral, and anal fins unarticulated and spinelike, as the perch.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). acanthopterygii. Retrieved September 29, 2026, from http://smartdefine.org/acanthopterygii/definitions/1970058 |
| Chicago | Webster's. 2011. "acanthopterygii" http://smartdefine.org/acanthopterygii/definitions/1970058 (accessed September 29, 2026). |
| Harvard | Webster's 2011, acanthopterygii, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/acanthopterygii/definitions/1970058>. |
| MLA | Webster's. "acanthopterygii" 27 May 2011. Web. 29 September 2026. <http://smartdefine.org/acanthopterygii/definitions/1970058> |