activated meaning and definition

ACTIVATED adjective

Definition of activated (adjective)

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