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

Examples of actuator in a Sentence

Recent Examples on the Web More than 30 years later, engineers have certainly made progress, but robots are still power-hungry machines packed with sensors, actuators and processors. The Physics Arxiv Blog, Discover Magazine, 29 Aug. 2023 By packing the car with more actuators and sensors, the driving dynamics can be better monitored and more fine-tuned, theoretically providing the driver with more feedback. Eric Stafford, Car and Driver, 18 Aug. 2023 Which meant designing a system with soft actuators and sensors to replicate muscles and nerves within the body, and a support structure to represent the skeleton. IEEE Spectrum, 11 Aug. 2023 Kia dealers will inspect and replace the hydraulic clutch actuator as necessary and install a new fuse, free of charge. Emily Deletter, USA TODAY, 7 Aug. 2023 The top's cylinders and actuators were also replaced under previous ownership, as were several repair items. Matthew Skwarczek, Car and Driver, 28 July 2023 The robot is surprisingly light—around 6 kilograms—considering that this includes its onboard computers, sensors, communication devices, joint actuators, propulsion motors, power electronics, and battery. IEEE Spectrum, 2 July 2023 This research focuses on the design of a novel hybrid gripper that enables versatile grasping and throwing manipulation with a single actuator. IEEE Spectrum, 28 Apr. 2023 Paoli’s latest Hurricane 2.0 features an electronic actuator to change the direction in which the gun spins. Matt Crisara, Popular Mechanics, 30 Mar. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'actuator.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


actuate + -or entry 1

First Known Use

1652, in the meaning defined above

Time Traveler
The first known use of actuator was in 1652

Dictionary Entries Near actuator

Cite this Entry

“Actuator.” Dictionary, Merriam-Webster, Accessed 30 Sep. 2023.

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