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
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Its high-range-of-motion actuators give it unrivaled balance and control, enabling a unique set of movements.
—
Bojan Stojkovski, Interesting Engineering, 10 Feb. 2026
Then, the actuator releases, causing the Ni-Ti tubes to rapidly cool down.
—IEEE Spectrum, 5 Feb. 2026
Parts of its limbs are connected horizontally at the joints with actuators — which make the parts move — giving it a clunkier feel than other robots whose arms and legs extend linearly from their bodies.
—Rachyl Jones, semafor.com, 4 Feb. 2026
Instead of an electric actuator at each front corner, Dethleffs has gone with a central cable pulley system that lifts and lowers both corners from the center.
—New Atlas, 21 Jan. 2026
See All Example Sentences for actuator
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Bojan Stojkovski, Interesting Engineering, 10 Feb. 2026
Then, the actuator releases, causing the Ni-Ti tubes to rapidly cool down.
—IEEE Spectrum, 5 Feb. 2026
Parts of its limbs are connected horizontally at the joints with actuators — which make the parts move — giving it a clunkier feel than other robots whose arms and legs extend linearly from their bodies.
—Rachyl Jones, semafor.com, 4 Feb. 2026
Instead of an electric actuator at each front corner, Dethleffs has gone with a central cable pulley system that lifts and lowers both corners from the center.
—New Atlas, 21 Jan. 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 12 Feb. 2026.
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