actuator
UK /ˈæk.tjuː.eɪ.tə(ɹ)/ US /ˈæk.t͡ʃu.eɪ.tɚ/
noun 4
Definitions
noun
1
Something that actuates something else.
The mind is the actuator of the body.
[…] and God is the Author and Actuator of nature, as well as of grace; […]
2
A usually electric device that causes a mechanical device (i.e., a mechanism) to be switched on or off. For example; an electric motor that opens and closes a valve.
3
The mechanism that moves the head assembly on a disk drive.
4
A relay that controls the flow of electricity.
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