activate
oxford
views updated May 23 2018ac·ti·vate / ˈaktəˌvāt/ •
v. [tr.] make (something) active or operative. ∎ convert (a substance, molecule, etc.) into a reactive form. DERIVATIVES: ac·ti·va·tion / ˌaktəˈvāshən/ n.ac·ti·va·tor / -ˌvātər/ n.
The Oxford Pocket Dictionary of Current English