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

Research on bilingualism has found differences in both the brain’s gray matter, which contains neurons and their connections, and white matter, which consists largely of nerve fibers linking different parts of the brain. — Karen Stollznow, The Conversation, 18 Sep. 2026

Nature also developed myelin, the fatty sheath around nerve fibers that allows electrical signals to travel up to 100 times faster than through unmyelinated neurons. — Bratin Saha, Forbes.com, 21 Aug. 2026

The result is a public dataset that maps thousands of individual nerve fibers across the body. — Mary Randolph, Scientific American, 11 Aug. 2026

White blood cells and inflammatory proteins were flooding into her backbone, damaging nerve fibers that carry electrical signals between brain and body. — Mike Hixenbaugh, NBC news, 30 June 2026

Word History

First Known Use

circa 1847, in the meaning defined above

Rhymes for nerve fiber

• cyber
• fibre
• prescriber
• subscriber
• transcriber

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