1. the action of causing a machine or device to operate
Usage: technical
2. the process of putting something into motion or action

Examples

• The actuation of the emergency brake stopped the train immediately.
• Remote actuation of the valve allows operators to control flow from a safe distance.
• The robot's arm movement depends on precise actuation of its servo motors.
• Manual actuation of the fire suppression system requires turning the red handle.
• The actuation mechanism failed, preventing the door from opening automatically.
• Pneumatic actuation provides reliable operation in harsh industrial environments.