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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Life transitions, nervous system dysregulation, trauma recovery—guests come for various reasons, but leave with the same result: a sense of regulation, clarity, and restored vitality. Nel-Olivia Waga, Forbes.com, 2 July 2025 And the bulk of scientific evidence has shown that low doses in vaccines don’t harm the nervous system. Aria Bendix, NBC news, 25 June 2025 Advertisement Advertisement Permethrin is a neurotoxin that targets an insect’s nervous system, triggering muscle spasms, paralysis, and eventually death. Angela Haupt, Time, 24 June 2025 More than just physical pain Neuropathic pain stems from damage to or dysfunction in the nervous system itself. Siddhesh Sabnis, The Conversation, 23 June 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 7 Jul. 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

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