Definition of activates:
(v) :
(transitive) To put a device, mechanism (alarm etc.) or system into action or motion; to trigger, to actuate, to set off, to enable.
(v) :
(transitive) To encourage development or induce increased activity; to stimulate.
(v) :
(transitive, computing, software) To remove the limitations of demoware by providing a license; to unlock.
(v) :
(transitive, chemistry, physics) To render more reactive; excite.
(v) :
(transitive, biology) To render a molecule reactive, active, or effective in performing its function.
(v) :
(transitive, chemistry) To hasten a chemical reaction, especially by heating.