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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Designed as an embodied AI system, the robot features a layered architecture that mirrors key functions of the human nervous system. Jijo Malayil, Interesting Engineering, 15 June 2026 But the study reflects rising scientific interest in technologies that may help regulate the nervous system. Samantha Agate, Fort Worth Star-Telegram, 13 June 2026 When your time is always broken up into these little endless tasks, your nervous system shifts into high gear and doesn’t get a chance to recharge. Parents, 13 June 2026 Neuralink is one of many groups working to connect the human nervous system to machines. Los Angeles Times, 13 June 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 17 Jun. 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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