- (n.) One of the rigid and undivided fin rays of a fish.
- (n.) The backbone or spinal column, of an animal; -- so called from the projecting processes upon the vertebrae.
- (n.) A rigid and sharp projection upon any part of an animal.
- (n.) A sharp appendage to any of a plant; a thorn.
- (n.) Anything resembling the spine or backbone; a ridge.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). spine. Retrieved September 22, 2026, from http://smartdefine.org/spine/definitions/2064931 |
| Chicago | Webster's. 2011. "spine" http://smartdefine.org/spine/definitions/2064931 (accessed September 22, 2026). |
| Harvard | Webster's 2011, spine, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/spine/definitions/2064931>. |
| MLA | Webster's. "spine" 28 May 2011. Web. 22 September 2026. <http://smartdefine.org/spine/definitions/2064931> |