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motor unit

Word Origin

noun, Cell Biology, Physiology.

1.

a motor neuron and the muscle fibers innervated by its axon.

Origin of motor unit

1965-1970

First recorded in 1965-70

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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motor unit in Medicine

motor unit n.
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.
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