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PronunciationEdit

  • (UK) IPA(key): /ˈæk.tjuː.eɪt.ə(ɹ)/

NounEdit

 
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actuator (plural actuators)

  1. Something 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
  2. (computing) The mechanism that moves the head assembly on a disk drive
  3. (electrical) A relay that controls the flow of electricity

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