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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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 The scans will be gathered into a colorful 3D digital reconstruction depicting the direction of individual nerve fibers on larger scales—roughly 40 gigabytes of data for a single slice and up to a few petabytes for the entire brain. IEEE Spectrum, 21 June 2017 In the operating room, the researchers make sure that the implant is properly positioned so that its 21 electrodes can stimulate nerve fibers that both extend and flex the leg muscles. IEEE Spectrum, 14 Mar. 2017 This miraculous feat was possible because the rat’s nervous system adapted to its injury with the help of the stimulation and training; the few nerve fibers around the spinal cord injury that had been spared from damage regrew and reorganized to bring commands from the rat’s brain to its legs. IEEE Spectrum, 14 Mar. 2017 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 22 May. 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
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