actuator

noun

ac·​tu·​a·​tor ˈak-chə-ˌwā-tər How to pronounce actuator (audio)
-shə-
: one that actuates
specifically : a mechanical device for moving or controlling something

Examples of actuator in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Equipped with high-performance actuators, precision gripping, and 3D navigation, the robot offers a payload capacity of 26 pounds at full extension. Kaif Shaikh, Interesting Engineering, 8 Oct. 2025 The Cleveland County facility produces advanced valves, actuators, clutches, and controls for automotive, truck and off-road vehicles. Charlotte Observer, 6 Oct. 2025 Its high-response linear actuator (HLA) focus motor snaps between near and far-off subjects in an instant, even with the a7R IV's autofocus system, which isn't as speedy as more recent Sony and L-mount cameras. PC Magazine, 9 Sep. 2025 The researchers fabricated the actuators using a 2D molding process that can manufacture them at millimeter, centimeter, and decimeter scales. IEEE Spectrum, 12 Aug. 2025 See All Example Sentences for actuator

Word History

Etymology

actuate + -or entry 1

First Known Use

1652, in the meaning defined above

Time Traveler
The first known use of actuator was in 1652

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Cite this Entry

“Actuator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/actuator. Accessed 10 Oct. 2025.

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