What does "central nervous system" mean?

In vertebrates, that part of the nervous system comprising the brain, brain stem, and spinal cord.

Central nervous system

Common synonyms include: brain, brain spinal cord system, cerebral cortex, cns, ganglion, gray matter.

noun

noun ·Rare ·Advanced level

Noun

1
In vertebrates, that part of the nervous system comprising the brain, brain stem, and spinal cord.
"Near-synonym: neuraxis (sometimes synonymous)"
2
the portion of the vertebrate nervous system consisting of the brain and spinal cord wordnet

"Near-synonym: neuraxis (sometimes synonymous)"