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central nervous system
noun
: the part of the nervous system which in vertebrates consists of the brain and spinal cord, to which sensory impulses are transmitted and from which motor impulses pass out, and which coordinates the activity of the entire nervous system compare peripheral nervous system
Examples of central nervous system in a Sentence
Recent Examples on the Web
Cannabinoids interact with the body’s endocannabinoid system, modulating pain signaling and inflammation:
THC binds to CB1 receptors in the central nervous system, altering pain perception.
—
Tribune Content Agency, The Mercury News, 5 Feb. 2025
Exploring the central nervous system's adaptation and psychological resilience.
2.
—
Anastasia Stepanova, Space.com, 2 Feb. 2025
Unlike opioids, which work by latching onto receptor proteins on nerves in the central nervous system, suzetrigine works only in peripheral nerves—that is, those outside the brain and spinal cord.
—
Ars Technica, 31 Jan. 2025
However, Acetaminophen only works in the central nervous system, while the NSAIDs work in the brain and all around the body.
—
Dan Perry, Newsweek, 31 Jan. 2025
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Word History
First Known Use
1826, in the meaning defined above
Time Traveler
The first known use of central nervous system was
in 1826
Dictionary Entries Near central nervous system
Cite this Entry
“Central nervous system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/central%20nervous%20system. Accessed 11 Feb. 2025.
Kids Definition
central nervous system
noun
: the part of the nervous system that in vertebrates consists of the brain and spinal cord
Medical Definition
central nervous system
noun
: the part of the nervous system which in vertebrates consists of the brain and spinal cord, to which sensory impulses are transmitted and from which motor impulses pass out, and which supervises and coordinates the activity of the entire nervous system compare autonomic nervous system, peripheral nervous system
More from Merriam-Webster on central nervous system
Britannica.com: Encyclopedia article about central nervous system
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