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motor unit

American  

noun

Cell Biology, Physiology.
  1. a motor neuron and the muscle fibers innervated by its axon.


Etymology

Origin of motor unit

First recorded in 1965–70

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“That lady hit the gavel so quick it scared everybody,” said Brown, who won the case and went on to serve in the motor unit for two and a half years.

From Washington Post • Jul. 26, 2021

On the motor unit, riding a dragon, it takes a week to shoot a minute’s worth—sometimes two weeks.

From The New Yorker • May 20, 2019

Why does a motor unit of the eye have few muscle fibers compared to a motor unit of the leg?

From Textbooks • Jun. 19, 2013

A motor unit is formed by a motor neuron and all of the muscle fibers that are innervated by that same motor neuron.

From Textbooks • Jun. 19, 2013

The combination of two responses is effected by linking both to the same stimulus; thus the two become united into a coördinated higher motor unit.

From Psychology A Study Of Mental Life by Woodworth, Robert S.