Illustration of neuron
- 1 cell body
- 2 dendrite
- 3 axon
- 4 nerve ending
: a grayish or reddish granular cell that is the fundamental functional unit of nervous tissue transmitting and receiving nerve impulses and having cytoplasmic processes which are highly differentiated frequently as multiple dendrites or usually as solitary axons which conduct impulses to and away from the cell body : nerve cell sense 1
Examples of neuron in a Sentence
Recent Examples on the Web
Gut support cells communicate with surprising precision – like brain neurons – using tiny extensions to send instructions to the stem cells responsible for maintaining and healing the intestine.
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New Atlas, 24 July 2025
The electrodes sense the brain’s neuron activities and transmit the information to the brain-computer interface (BCI), which translates the signals into speech.
—Emilie Le Beau Lucchesi, Discover Magazine, 24 July 2025
These genes help lay the scaffolding of the brain itself, orchestrating processes like neuron formation, migration, and early connectivity.
—William A. Haseltine, Forbes.com, 21 July 2025
The neuron recordings were able to zoom in to several major brain regions involved in processing smells, confirming findings from animal studies.
—Yasemin Saplakoglu, Quanta Magazine, 3 July 2025
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New Atlas, 24 July 2025
The electrodes sense the brain’s neuron activities and transmit the information to the brain-computer interface (BCI), which translates the signals into speech.
—Emilie Le Beau Lucchesi, Discover Magazine, 24 July 2025
These genes help lay the scaffolding of the brain itself, orchestrating processes like neuron formation, migration, and early connectivity.
—William A. Haseltine, Forbes.com, 21 July 2025
The neuron recordings were able to zoom in to several major brain regions involved in processing smells, confirming findings from animal studies.
—Yasemin Saplakoglu, Quanta Magazine, 3 July 2025
See All Example Sentences for neuron
Cite this Entry
“Neuron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/neuron. Accessed 29 Jul. 2025.
Copy CitationKids Definition
neuron
noun
neu·ron
ˈn(y)ü-ˌrän 
ˈn(y)u̇(ə)r- ˌän
ˈn(y)u̇(ə)r- ˌän
: a grayish or reddish cell that is the basic working unit of the nervous system and has an axon and dendrites that carry nerve impulses
Medical Definition
neuron
noun
neu·ron
ˈn(y)ü-ˌrän
ˈn(y)u̇(ə)r-ˌän
ˈn(y)u̇(ə)r-ˌän
variants
also neurone
: one of the cells that constitute nervous tissue, that have the property of transmitting and receiving nerve impulses, and that are composed of somewhat reddish or grayish protoplasm with a large nucleus containing a conspicuous nucleolus, irregular cytoplasmic granules, and cytoplasmic processes which are highly differentiated frequently as multiple dendrites or usually as solitary axons and which conduct impulses toward and away from the cell body : nerve cell sense 1
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