axon

noun

ax·​on ˈak-ˌsän How to pronounce axon (audio)
variants or less commonly axone
: a usually long and single nerve-cell process that usually conducts impulses away from the cell body see neuron illustration

Examples of axon 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.
Left says, On the corpus callosum, that massive highway of three hundred million axons, in a tiny wood hut, on the verge of collapse. Weike Wang, New Yorker, 31 July 2025 The axon’s tips (4) release neurotransmitters that cause connected neurons to fire in turn. Sangeeta S. Chavan, IEEE Spectrum, 9 June 2025 However, when the researchers artificially added GI-SINEs using gene therapy, these central neurons did start to regrow axons. New Atlas, 13 July 2025 This involved delivering a pulse of alternating current with a small amplitude, and at a frequency of 2 Hz that has previously been shown to be effective in encouraging axon growth in lab settings. Abhimanyu Ghoshal, New Atlas, 6 July 2025 See All Example Sentences for axon

Word History

Etymology

New Latin axon, from Greek axōn

First Known Use

1895, in the meaning defined above

Time Traveler
The first known use of axon was in 1895

Browse Nearby Words

Cite this Entry

“Axon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/axon. Accessed 20 Aug. 2025.

Kids Definition

axon

noun
ax·​on ˈak-ˌsän How to pronounce axon (audio)
variants also axone
: a usually long and single process of a neuron that usually carries impulses away from the cell body compare dendrite sense 2
axonal
ˈak-sən-ᵊl How to pronounce axon (audio)
ak-ˈsän-
-ˈsōn-
adjective

Medical Definition

axon

noun
ax·​on ˈak-ˌsän How to pronounce axon (audio)
variants also axone
: a usually long and single nerve-cell process that usually conducts impulses away from the cell body

More from Merriam-Webster on axon

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