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

The early phase also saw a loss of oligodendrocytes, cells that insulate nerve fibers and help facilitate communication in the brain, in the cortex. —New Atlas, 15 Oct. 2024

The particular cells imaged here are precursors to oligodendrocytes, cells that produce myelin in the body, the substance that forms protective sheaths around nerve fibers. —Michael Franco, New Atlas, 21 Sep. 2024

Neurons become hyperactive, astrocytes and microglia become stuffed with lipids and less effective, and cells called oligodendrocytes fail to maintain the sheathing around nerve fibers. —Byjocelyn Kaiser, science.org, 12 Sep. 2024

Similarly, there are topical anticholinergics, which block and inhibit the activity of acetylcholine, the neurotransmitter that activates the nerve fibers activating the sweat glands. —Beth Mole, Ars Technica, 10 Sep. 2024

Word History

First Known Use

circa 1847, in the meaning defined above

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