motor neuron

noun

: a neuron that passes from the central nervous system or a ganglion toward a muscle and conducts an impulse that causes movement

called also motoneuron

Examples of motor neuron in a Sentence

Recent Examples on the Web
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But this past October, McCue, who is from the English town of Grimsby, was diagnosed with motor neuron disease (MND). Cara Lynn Shultz, People.com, 21 Feb. 2025 The role of survival motor neuron protein (SMN) in protein homeostasis Clevland Clinic. Jack Knudson, Discover Magazine, 20 Feb. 2025 In studies at the University of Pittsburgh School of Medicine, sessions of spinal cord stimulation were shown to restore motor neuron activity and improve muscle strength in the legs for patients with SMA. Melissa Rudy, Fox News, 7 Feb. 2025 The neurodegenerative disease, seen in many football players, can cause symptoms such as memory loss, depression, aggression and motor neuron disease, according to the Mayo Clinic. Danielle Jennings, People.com, 9 Jan. 2025 See All Example Sentences for motor neuron

Word History

First Known Use

1898, in the meaning defined above

Time Traveler
The first known use of motor neuron was in 1898

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Cite this Entry

“Motor neuron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/motor%20neuron. Accessed 3 Mar. 2025.

Kids Definition

motor neuron

noun
: a neuron that passes from the central nervous system or a ganglion toward or to a muscle and carries a nerve impulse that causes movement compare sensory neuron

Medical Definition

motor neuron

noun
: a neuron that passes from the central nervous system or a ganglion toward or to a muscle and conducts a nerve impulse that causes movement

called also motoneuron

compare interneuron, sensory neuron

More from Merriam-Webster on motor neuron

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