Spine(n.) A sharp appendage to any of a plant; a thorn.
Spine(n.) A rigid and sharp projection upon any part of an animal.
Spine(n.) One of the rigid and undivided fin rays of a fish.
Spine(n.) The backbone, or spinal column, of an animal; -- so called from the projecting processes upon the vertebrae.
Spine(n.) Anything resembling the spine or backbone; a ridge.
Spined(a.) Furnished with spines; spiny.

Words within spined