noun Cell Biology, Physiology.
a motor neuron and the muscle fibers innervated by its axon.
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- motor sailer,
- motor scooter,
- motor speech center,
- motor torpedo boat,
- motor truck,
- motor urgency,
- motor van,
- motor vehicle,
- motor vessel,
- motor voter law
Origin of motor unit
First recorded in 1965–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for motor unit
The upshot of it was that somebody reported him, and the officer in command of his "motor-unit" read him a stern lecture.
He wrote a letter to the officer in command of his motor-unit, telling what had happened to him, and couldn't it be arranged?
A single somatic motor neuron and the group of muscle fibers innervated by it.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.