| the part of the nervous system comprising the brain and spinal cord. |
| central nervous system n. Abbr. CNS The portion of the vertebrate nervous system consisting of the brain and spinal cord. |
central nervous system n.
Abbr. CNS
The portion of the vertebrate nervous system consisting of the brain and spinal cord. Also called cerebrospinal axis.
| central nervous system
The part of the nervous system in vertebrate animals that consists of the brain and spinal cord. Compare peripheral nervous system. |