What is the meaning of actuating?

verb

• Put in motion or move to act.
  • usage: "trigger a reaction"; "actuate the circuits"
  • synonyms: trip, actuate, trigger, activate, set off, spark off, spark, trigger off, touch off
• Give an incentive for action.
  • usage: "This moved me to sacrifice my career"
  • synonyms: motivate, actuate, propel, move, prompt, incite

adjective

• Causing motion or action or change.
  • synonyms: activating