activated Meaning, Definition & Usage

1. verb put in motion or move to act
   activate; touch off; trigger off; actuate; set off; trigger; spark off; spark; trip.
   
   • trigger a reaction
   • actuate the circuits
2. verb make active or more active
   activate.
   
   • activate an old file
3. verb make more adsorptive
   activate.
   
   • activate a metal
4. verb aerate (sewage) so as to favor the growth of organisms that decompose organic matter
   activate; aerate.
   
5. verb make (substances) radioactive
   activate.
   
6. adjective satellite (of sewage) treated with aeration and bacteria to aid decomposition
   
7. adjective satellite (of e.g. a molecule) made reactive or more reactive
   excited.
   
8. adjective satellite rendered active; e.g. rendered radioactive or luminescent or photosensitive or conductive
   
9. adjective satellite (military) set up and placed on active assignment
   
   • a newly activated unit

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