nerve fiber

noun

: any of the processes (such as axons or dendrites) of a neuron

Examples of nerve fiber in a Sentence

Recent Examples on the Web
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The eye flattens due to fluid redistribution, the retinal nerve fiber layer can thicken, and there is a refractive shift so the vision can blur in space. Jen Christensen, CNN, 18 Mar. 2025 Conversely, if the patient lies on his stomach, the distance between the electrodes and the spinal cord increases, and because fewer nerve fibers receive the masking stimulation signal, the pain may return. Tim Denison, IEEE Spectrum, 27 Jan. 2015 This is because the base of the eyelash, where lash glue is applied, is packed with nerve fibers meant to protect the eyes. India Espy-Jones, Essence, 23 May 2025 Scientists at Spain's University of the Basque Country (UPV/EHU) have identified a link between marathon running and a sharp reduction in the protective myelin that surrounds nerve fibers – axons – in the brain. New Atlas, 25 Mar. 2025 See All Example Sentences for nerve fiber

Word History

First Known Use

circa 1847, in the meaning defined above

Time Traveler
The first known use of nerve fiber was circa 1847

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Cite this Entry

“Nerve fiber.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nerve%20fiber. Accessed 16 Jul. 2025.

Kids Definition

nerve fiber

noun
: any of the long thin parts that lead to or away from the cell body of a neuron and include axons and dendrites

Medical Definition

nerve fiber

noun
: any of the processes (as an axon or a dendrite) of a neuron
Last Updated: - Updated example sentences
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