I. ˈspīn ə l adjective
Etymology: Late Latin spinalis, from Latin spina thorn, spine, spinal column + -alis -al — more at spine
1.
a. : of, relating to, or situated near the vertebral column, spinal canal, or spinal cord
b. : located in or affecting the vertebral column or spinal cord
spinal twinges
degenerative spinal disease
2.
a. : dependent upon the spinal cord : involving in its central nervous path only the spinal cord
a spinal reflex
b. : having the spinal cord isolated in its functioning from the brain (as by surgical section)
experiments with spinal animals
3. : of or relating to a spine
4. : resembling a spine : suggesting a backbone
the two great spinal mountain-systems of the U.S. — Lewis Mumford
5. : made for or fitted to the spine
a spinal brace
II. noun
( -s )
: spinal anesthesia