- A sharp appendage to any of a plant; a thorn. - A rigid and sharp projection upon any part of an animal. - One of the rigid and undivided fin rays of a fish. - The backbone, or spinal column, of an animal; -- so called
from the projecting processes upon the vertebrae. - Anything resembling the spine or backbone; a ridge.
Meaning of 'spine' (Princeton's WordNet)
1 . spine
[ n]
Meaning (1): - the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
Example in sentence:
the fall broke his back
Meaning (2): - the part of a book's cover that encloses the inner side of the book's pages and that faces outward when the book is shelved
Example in sentence:
the title and author were printed on the spine of the book