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English definition of “actuate”

actuate

verb [T]     /ˈæk.tʃu.eɪt/ /-tju-/ specialized or formal
to make a machine work or be the reason a person acts in a certain way: A detonator is actuated by heat, percussion, friction, or electricity. He was actuated almost entirely by altruism.FunctioningPerforming a function
(Definition of actuate verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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