Pronunciation: (ak'chOO-āt"), [key]
—v.t., -at•ed, -at•ing.
1. to incite or move to action; impel; motivate: actuated by selfish motives.
2. to put into action; start a process; turn on: to actuate a machine.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.