nerve fiber


Definition of nerve fiber

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

Examples of nerve fiber in a Sentence

Recent Examples on the Web

Doctors found that in measuring white matter — nerve fibers that form the brain's communications network — the Cuba patients had a mean volume that was 27 cubic centimeters smaller than the control patients. Josh Lederman, NBC News, "Doctors find differences in brains of U.S. diplomats who alleged mystery attacks in Cuba," 23 July 2019 After 90 days, axons — the nerve fibers that carry neurons’ outgoing messages — had connected with host neurons. Lacy Schley, Discover Magazine, "State of Science: Neurons Are Surprising Researchers With Unexpected Abilities," 15 Jan. 2019 Julius theorizes that after triggering an initial burning sensation, capsaicin can have the longer-term effect of desensitizing the TRPV1 channel, as well as the nerve fiber at large, silencing these pain sensing nerves. Quanta Magazine, "Scientists Reveal Structure of Pain Sensor," 20 Feb. 2014 The immune systems eats away at the fatty sheathing that covers and protects the nerve fibers in these areas (myelin). Carolyn L. Todd, SELF, "What Selma Blair 'Thought Was a Pinched Nerve' Turned Out to Be MS," 22 Oct. 2018 Then there are thin, uninsulated nerve fibers that fire more slowly and produce what’s called second pain, which is a duller burning sensation that lasts a bit longer. Carolyn L. Todd, SELF, "This Is Why Stubbing Your Toe Hurts So Much," 17 Apr. 2018 After many specialist visits and tests, an MRI found damage to the nerve fibers, or white matter, in her brain. Sumathi Reddy, WSJ, "The ‘Right to Try’ Law Says Yes, the Drug Company Says No," 6 June 2018 David Carpenter, a physician who directs the Institute for Health and the Environment at the University at Albany, S.U.N.Y., explained the purpose of these cells is to insulate nerve fibers throughout the body. Charles Schmidt, Scientific American, "New Studies Link Cell Phone Radiation with Cancer," 29 Mar. 2018 In the early stages of dry macular degeneration, there are yellow deposits, called drusen, under the retina, which is the nerve tissue that lines the inside of the eye that detects light and sends nerve fibers to the brain. Andrea K. Mcdaniels,, "Ask the Expert: Macular degeneration can lead to difficulty reading, recognizing faces and performing other fine tasks," 17 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nerve fiber.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of nerve fiber

circa 1847, in the meaning defined above

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Statistics for nerve fiber

Last Updated

14 Aug 2019

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Time Traveler for nerve fiber

The first known use of nerve fiber was circa 1847

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More Definitions for nerve fiber

nerve fiber


Kids Definition of nerve fiber

: any of the threadlike extensions (as axons or dendrites) of a nerve cell that carry nerve impulses

nerve fiber


Medical Definition of nerve fiber

: any of the processes (as an axon or a dendrite) of a neuron

Comments on nerve fiber

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a haphazard or makeshift solution

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