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.
Our amygdala is overactive, our nervous systems are fried and our dopamine cycles are hijacked by short-term stimuli. Chris Schembra, Rolling Stone, 22 Oct. 2025 The progressive, fatal disease affects the nervous systems of cervids, members of the deer family. Austin Hornbostel, Nashville Tennessean, 21 Oct. 2025 Let this lunation be a reset for your nervous system. Dossé-Via Trenou, Refinery29, 19 Oct. 2025 By day 10, my entire nervous system was hijacked—every fiber of my being was at ease, and all cravings subsided. Essence, 14 Oct. 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 24 Oct. 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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