actuation

From actuate +‎ -ion.

• Rhymes: -eɪʃən

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• (General American) IPA^(key): /ˈækt͡ʃu.eɪʃən/, /ˈækt͡ʃu.eɪʃn̩/

actuation (countable and uncountable, plural actuations)

1. The act of putting into motion.

   Although an operator presses the button, the actuation is done by an immense series of levers and cranks.

   • 1954 February, “Third Class Corridor Brake Coaches for British Railways”, in Railway Magazine, page 133:

     All the outside passenger doors are fitted with drop windows and outside actuation locks, and each end of the car has a Pullman type gangway.