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
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The Gut-Brain Connection The central nervous system (including the brain and spinal cord) and the gut have a two-way communication system. Leigh Weddle, Verywell Health, 11 Nov. 2025 The disease damages the protective covering around nerves in the central nervous system, leading to symptoms like muscle weakness, numbness, vision changes and mobility issues. Stephanie Giang-Paunon, FOXNews.com, 8 Nov. 2025 The progressive disease damages the protective cover around nerves in the central nervous system, according to the Cleveland Clinic. Tricia Despres, PEOPLE, 7 Nov. 2025 The drug is a central nervous system stimulant typically taken about once a day. Sarah Scott, Parents, 6 Nov. 2025 See All Example Sentences for central nervous system

Word History

First Known Use

1826, in the meaning defined above

Time Traveler
The first known use of central nervous system was in 1826

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Cite this Entry

“Central nervous system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/central%20nervous%20system. Accessed 18 Nov. 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

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