motor unit
noun
: a motor neuron together with the muscle fibers on which it acts
Example Sentences
Recent Examples on the Web The shortage has affected the special operations unit, which investigates violent crimes; the motor unit, which provides traffic enforcement; the neighborhood policing division, which coordinates homeless outreach efforts, and others. 
San Diego Union-Tribune, 3 July 2022 The Fazua’s seven-pound battery-motor unit is slim, and so sleek in its integration that most passersby assume it’s a regular bike, not an e-bike. Kelly Bastone, Outside Online, 24 July 2021 Brown, 70, was the first woman to ride a Harley-Davidson in the motor unit. Washington Post, 26 July 2021 During his decades-long career as a police officer, Haas has served on the department's honor guard, motor unit and the police union's executive board. Quinlan Bentley, The Enquirer, 29 Apr. 2021 Between the rear wheels is a twin-motor unit that acts as a differential to give power to the rear wheels. Robert Duffer, chicagotribune.com, 12 June 2017 Both front and rear motors recapture energy when coasting to power the batteries, and the rear motor unit is automatically decoupled in certain situations, such as highway cruising, to improve efficiency. Robert Duffer, chicagotribune.com, 12 June 2017 Previously, researchers have been able to detect up to 25 individual motor units. R. Douglas Fields, Scientific American, 27 Mar. 2018 See More
San Diego Union-Tribune, 3 July 2022 The Fazua’s seven-pound battery-motor unit is slim, and so sleek in its integration that most passersby assume it’s a regular bike, not an e-bike. Kelly Bastone, Outside Online, 24 July 2021 Brown, 70, was the first woman to ride a Harley-Davidson in the motor unit. Washington Post, 26 July 2021 During his decades-long career as a police officer, Haas has served on the department's honor guard, motor unit and the police union's executive board. Quinlan Bentley, The Enquirer, 29 Apr. 2021 Between the rear wheels is a twin-motor unit that acts as a differential to give power to the rear wheels. Robert Duffer, chicagotribune.com, 12 June 2017 Both front and rear motors recapture energy when coasting to power the batteries, and the rear motor unit is automatically decoupled in certain situations, such as highway cruising, to improve efficiency. Robert Duffer, chicagotribune.com, 12 June 2017 Previously, researchers have been able to detect up to 25 individual motor units. R. Douglas Fields, Scientific American, 27 Mar. 2018 See More Word History
First Known Use
1925, in the meaning defined above
Medical Definition
motor unit
noun
: a motor neuron together with the muscle fibers on which it acts