nervous system

noun

: the bodily system that in vertebrates is made up of the brain and spinal cord, nerves, ganglia, and parts of the receptor organs and that receives and interprets stimuli and transmits impulses to the effector organs see autonomic nervous system, central nervous system, peripheral nervous system

Examples of nervous system in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Muscle cramps and playing surfaces As muscles fatigue, the normal balance between signals in the nervous system that direct muscles to contract and relax become disrupted. Michael Hales, The Conversation, 9 Sep. 2025 In this state, the nervous system’s fight-or-flight response takes priority, inhibiting relaxation, pleasure and trust, which make for the key ingredients of romantic connection. Mark Travers, Forbes.com, 9 Sep. 2025 Conway added that intellectual disability is another risk because these infections attack the nervous system. Michal Ruprecht, NPR, 8 Sep. 2025 Sound bowls dot the yard, ready to soothe the nervous system at a moment’s notice. Allison P. Davis, Vulture, 8 Sep. 2025 See All Example Sentences for nervous system

Word History

First Known Use

1703, in the meaning defined above

Time Traveler
The first known use of nervous system was in 1703

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Cite this Entry

“Nervous system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nervous%20system. Accessed 14 Sep. 2025.

Kids Definition

nervous system

noun
: the bodily system that receives stimuli, decides on their importance, and sends nerve impulses to the organs of action and that in vertebrates is made up of brain and spinal cord, nerves, ganglia, and parts of the receptor organs

Medical Definition

nervous system

noun
: the bodily system that in vertebrates is made up of the brain and spinal cord, nerves, ganglia, and parts of the receptor organs and that receives and interprets stimuli and transmits impulses to the effector organs see autonomic nervous system, central nervous system, peripheral nervous system

More from Merriam-Webster on nervous system

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