Definitions of activated:

  • adjective:   of e.g. a molecule; made reactive or more reactive
  • adjective:   (of sewage) treated with aeration and bacteria to aid decomposition
  • adjective:   set up and placed on active assignment
    Example: "A newly activated unit"
  • adjective:   rendered active; e.g. rendered radioactive or luminescent or photosensitive or conductive