verb (used with object), activated, activating.
to make active; cause to function or act.
2. Physics. a.
to render more reactive; excite: to activate a molecule.
to induce radioactivity.
to aerate (sewage) in order to accelerate decomposition of impure organic matter by microorganisms.
4. Chemistry. a.
to make (carbon, a catalyst, molecules, etc.) more active
to hasten (reactions) by various means, as heating.
to place (a military unit or station) on an active status in an assigned capacity.
overactivate, verb (used with object), overactivated, overactivating.
superactivate, verb (used with object), superactivated, superactivating.
1. actuate, start, turn on, set going.
1. stop, halt, check.