activation activation /ˌækˈtɪveɪʃən/

noun

1. Making active and effective (as a bomb)  ( activation )
   making active and effective (as a bomb)
   
2. The activity of causing to have energy and be active  ( activating , activation , energizing )
   the activity of causing to have energy and be active
   
3. Stimulation of activity in an organism or chemical  ( activation )
   stimulation of activity in an organism or chemical