actuator

noun

ac·​tu·​a·​tor ˈak-chə-ˌwā-tər 

-shə-

: one that actuates

specifically : a mechanical device for moving or controlling something

Examples of actuator in a Sentence

Recent Examples on the Web

An onboard electronic control system delivers up to 500 volts to each of those actuators at a power of just 500 milliwatts. —Ben Coxworth, New Atlas, 23 Feb. 2025

Other companies' robots typically use other types of actuators, such as solenoids and electric motors. —Ars Technica, 21 Feb. 2025

Linear joint actuators are like advanced motors that allow the robot's joints to move in a straight line, giving it more fluid and controlled motions. —Kurt Knutsson, Cyberguy Report, Fox News, 14 Feb. 2025

In the weeks ahead, the test module will be submitted to simulated launch pressures using hydraulic actuators on the Mojave test stand, as well as undergo structural load tests while under pressure. —Josh Dinner, Space.com, 7 Feb. 2025

Word History

Etymology

actuate + -or entry 1

First Known Use

1652, in the meaning defined above

Rhymes for actuator

• activator
• agitator
• alligator
• allocator
• alternator
• animator
• annotator
• applicator
• arbitrator
• aspirator
• aviator
• calculator