WordReference Random House Learner's Dictionary of American English © 2017
ac•tu•ate /ˈæktʃuˌeɪt/USA pronunciation   v. [+ object], -at•ed, -at•ing. 
  1. to move to action:He was actuated by selfish motives.
  2. to put into action: to actuate a machine.
ac•tu•a•tion /ˌæktʃuˈeɪʃən/USA pronunciation  n. [uncountable]
ac•tu•a•tor, n. [countable]

WordReference Random House Unabridged Dictionary of American English © 2017
ac•tu•ate  (akcho̅o̅ āt′),USA pronunciation v.t.,  -at•ed, -at•ing. 
  1. to incite or move to action;
    motivate:actuated by selfish motives.
  2. to put into action;
    start a process;
    turn on:to actuate a machine.
ac′tu•ation, n. 
  • Medieval Latin āctuāt(us) reduced to action (past participle of āctuāre), equivalent. to Latin āctu(s) (see act) + -ātus -ate1
  • 1590–1600

Collins Concise English Dictionary © HarperCollins Publishers::

actuate /ˈæktʃʊˌeɪt/ vb (transitive)
  1. to put into action or mechanical motion
  2. to motivate or incite into action: actuated by unworthy desires
Etymology: 16th Century: from Medieval Latin actuātus, from actuāre to incite to action, from Latin āctus act

ˌactuˈation n ˈactuˌator n

'actuate' also found in these entries:

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