Meaning of ACTIVATE in English 1 make active; bring into action. 2 Chem. cause reaction in; excite (a substance, molecules, etc.). 3 Physics make radioactive. activated carbon carbon, esp. charcoal, treated to increase its adsorptive power. activated sludge aerated sewage containing aerobic bacteria. activation n. activator n.

Concise Oxford English dictionary.      Краткий оксфордский словарь английского языка.