verb (used with object), ac·ti·vat·ed, ac·ti·vat·ing.
- to render more reactive; excite: to activate a molecule.
- to induce radioactivity.
- to make (carbon, a catalyst, molecules, etc.) more active.
- to hasten (reactions) by various means, as heating.
Examples from the Web for activation
He went so far as to throw an “Activation Party” in their honor just weeks before his September arrest.
It is usually measured by inserting materials of known composition and measuring their activation.The Atomic Fingerprint|Bernard Keisch
Then, as Tony switched the activation circuit, the vertical line formed a pattern that varied in width from top to bottom.The Golden Skull|John Blaine
But non-military items also arrived for activation and test.
Activation meant turning them on and giving them a sort of basic training in the tasks they were designed to do.
How this activation is being aided and accelerated by another source of dynamic energy: irradiation from the sun.The Brain|Alexander Blade
British Dictionary definitions for activation
- to increase the rate of (a reaction)
- to treat (a substance, such as carbon or alumina) so as to increase powers of adsorption