01 n. A sharp appendage to any of a plant; a thorn.
-
1.
A sharp appendage to any of a plant; a thorn.(Bot.)
-
2.
A rigid and sharp projection upon any part of an animal.(Zool.)
-
3.
The backbone, or spinal column, of an animal; -- so called from the projecting processes upon the vertebrae.(Anat.)
-
4.
Anything resembling the spine or backbone; a ridge.