(a.) Shaped like a spine.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). spiniform. Retrieved September 21, 2026, from http://smartdefine.org/spiniform/definitions/2064947 |
| Chicago | Webster's. 2011. "spiniform" http://smartdefine.org/spiniform/definitions/2064947 (accessed September 21, 2026). |
| Harvard | Webster's 2011, spiniform, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/spiniform/definitions/2064947>. |
| MLA | Webster's. "spiniform" 28 May 2011. Web. 21 September 2026. <http://smartdefine.org/spiniform/definitions/2064947> |