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
The robot also uses high-speed actuators for precise movement.
—
Aamir Khollam, Interesting Engineering, 22 Apr. 2026
The submarine cable-cutting technology relies on an electro-hydrostatic actuator consisting of a hydraulic pump, an electric motor, and a control unit.
—Jonathan M. Gitlin, ArsTechnica, 16 Apr. 2026
Lightweight hydraulic roof actuators mean that the top can be opened or closed in just 12 seconds at speeds of up to 31 mph.
—Bryan Hood, Robb Report, 15 Apr. 2026
Honeywell is making a $500 million multiyear investment to upgrade its production capacity of critical defense technologies, which include navigation systems, missile actuators, and electronic warfare solutions.
—Jeff Marks, CNBC, 25 Mar. 2026
See All Example Sentences for actuator
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.
Aamir Khollam, Interesting Engineering, 22 Apr. 2026
The submarine cable-cutting technology relies on an electro-hydrostatic actuator consisting of a hydraulic pump, an electric motor, and a control unit.
—Jonathan M. Gitlin, ArsTechnica, 16 Apr. 2026
Lightweight hydraulic roof actuators mean that the top can be opened or closed in just 12 seconds at speeds of up to 31 mph.
—Bryan Hood, Robb Report, 15 Apr. 2026
Honeywell is making a $500 million multiyear investment to upgrade its production capacity of critical defense technologies, which include navigation systems, missile actuators, and electronic warfare solutions.
—Jeff Marks, CNBC, 25 Mar. 2026
See All Example Sentences for actuator
Cite this Entry
“Actuator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/actuator. Accessed 30 Apr. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
