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
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That ability, once reserved for living nervous systems, could reshape how robots interact with the physical world and with humans in particular. New Atlas, 8 Feb. 2026 Trust your nervous system for an accurate read of most people and most situations. Magi Helena, Dallas Morning News, 7 Feb. 2026 Meanwhile, Tabrizi took a different path to studying conditions that damage and destroy parts of the human nervous system. Hunter Geisel, Miami Herald, 7 Feb. 2026 But our power is about awakening something beyond fear and cynicism in the human nervous system. Hanif Abdurraqib, New Yorker, 6 Feb. 2026 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 Feb. 2026.

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

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