spinal column vs vertebral column

spinal column and vertebral column both are nouns.

Word	Noun	Adjective	Verb	Adverb
spinal column	Yes	No	No	No
vertebral column	Yes	No	No	No

As nouns, spinal column and vertebral column are synonyms defined as:

spinal column and vertebral column: the series of vertebrae forming the axis of the skeleton and protecting the spinal cord

Other synonyms of spinal column include back, backbone, rachis, spine.

spinal column (noun)	vertebral column (noun)
the series of vertebrae forming the axis of the skeleton and protecting the spinal cord	the series of vertebrae forming the axis of the skeleton and protecting the spinal cord