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Backbone

/ˈbakˌbōn/

Noun

1. The series of vertebrae, separated by disks, that encloses and protects the spinal cord, and runs down the middle of the back in vertebrate animals. (wiktionary.org)

2. (Science: anatomy)
The spinal column, found in vertebrate animals, which runs along the dorsal side and contains the central nerve cord (spinal cord). (biology-online.org)

3. The main structural feature of a polymer (chain-like) molecule from which many side chains branch off. The series of vertebrae forming the axis of the skeleton and protecting the spinal cord. (biology-online.org)

4. A bone structure found in vertebrates where series of vertebrae are positioned in a column with the primary function of protecting the spinal cord and maintaining structure of the organism. (biology-online.org)

Syn: spine, spinal column, vertebral column

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