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The Collaborative International Dictionary
Actuation

Actuation \Ac`tu*a"tion\, n. [Cf. LL. actuatio.] A bringing into action; movement.
--Bp. Pearson.

Wiktionary
actuation

n. The act of putting into motion.

WordNet
actuation

n. the act of propelling [syn: propulsion]

Wikipedia
Actuation
  • High Redundancy Actuation (HRA), a new approach to fault tolerant control in the area of mechanical actuation.
  • Variable valve actuation, any mechanism or method that can alter the shape or timing of a valve lift event within an internal combustion engine.

Usage examples of "actuation".

He was wholly undramatic in the actuation of the characters which he imagined so dramatically.

Though a far less obvious act of sabotage than smashing the actuation panel, it was just as effective.

Five seconds after actuation the chemical bomb blows and knocks out the controls.