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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.

Brown, 70, was the first woman to ride a Harley-Davidson in the motor unit.

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

The actual group of muscle fibers in a muscle innervated by a single motor neuron is called a motor unit.

From Textbooks • Jun. 19, 2013

If the frequency of motor neuron signaling increases, summation and subsequent muscle tension in the motor unit continues to rise until it reaches a peak point.

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.