noun🔗ShareSomething that actuates something else, especially 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"The mind is the actuator of the body."technologytechnicalmachinedeviceelectronicselectricindustrysystempartenergyfunctionChat with AIVocabulary GamePractice Reading
noun🔗ShareThe mechanism that moves the head assembly on a disk drive"The computer's actuator moved the disk drive head precisely to the correct spot on the hard drive. "technologymachineelectronicscomputingdevicetechnicalpartChat with AIVocabulary GamePractice Reading
noun🔗ShareA relay that controls the flow of electricity"The actuator in the coffee machine controls the flow of electricity to the heating element, turning it on and off to keep your coffee warm. "electronicsdevicemachinetechnicalenergyChat with AIVocabulary GamePractice Reading