Definitions of spine

1. the series of vertebrae forming the axis of the skeleton and protecting the spinal cord; " the fall broke his back"

2. a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin

3. A sharp appendage to any of a plant; a thorn.

4. A rigid and sharp projection upon any part of an animal.

5. One of the rigid and undivided fin rays of a fish.

6. The backbone, or spinal column, of an animal; -- so called from the projecting processes upon the vertebrae.

7. Anything resembling the spine or backbone; a ridge.

8. The backbone; a thorny growth on a plant or animal.

9. A thorn: a thin, pointed spike, esp. in fishes: the backbone of an animal.

10. A thorn; pointed spike; backbone of an animal.

11. The back- bone of an animal; a thorn; a sharp process.

12. A spike or thorn; any thin sharp- pointed thing; the vertebral column or backbone, so called from its series of thorn- like processes; in bot., an abortive branch with a hard sharp point.

13. The backbone ; the vertebral column ; a sharp- pointed process or outgrowth as found on leaves, Echinoids, Porcupines ; the pointed process of a vertebra ; the scapular ridge ; a fin- ray.