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

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 Myelin's purpose is to prevent electrical loss as the nerve fibers transfer pulses up and down the body. David Grossman, Popular Mechanics, "How Practice Actually Changes Your Body," 28 Feb. 2017 Six of those were known to be involved in cell migration and growth of nerve fibers, both essential in creating connections and networks in the brain. Beth Mole, Ars Technica, "There are people who hear color—and they may have hyper-connected brains," 7 Mar. 2018 Symptoms like foggy thinking and trouble walking, which Davis experienced, happen because multiple sclerosis attacks the protective sheath (myelin) that covers nerve fibers. Mary Lou Brink,, "Top Workplaces 2018 nomination deadline extended," 21 Jan. 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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Last Updated

1 Jan 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

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