activated activated /ˈækˌtɪveɪtɪd/

adjective

1. () (of sewage) treated with aeration and bacteria to aid decomposition  ( activated )
   (of sewage) treated with aeration and bacteria to aid decomposition
   
2. (military) set up and placed on active assignment  ( activated )
   (military) set up and placed on active assignment
    A newly activated unit
   a newly activated unit
   
3. Rendered active; e.g. rendered radioactive, luminescent, photosensitive or conductive  ( activated )
   rendered active; e.g. rendered radioactive, luminescent, photosensitive or conductive
   
4. (of e.g. a molecule) made reactive or more reactive  ( activated , excited )
   (of e.g. a molecule) made reactive or more reactive