Definitions of spinal column
the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
back, backbone, rachis, spine, vertebral column
a flexible rodlike structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates
backbone of an animal
a notochord of a larval tunicate typically confined to the caudal region
any structure created by the skeleton of an organism
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