Definition of 'activate'
- put in motion or move to act; "trigger a reaction"; "actuate the circuits"
Synonyms: trip actuate trigger set off spark off spark trigger off touch off
- make active or more active; "activate an old file"
Antonyms: inactivate deactivate
- make more adsorptive; "activate a metal"
- aerate (sewage) so as to favor the growth of organisms that decompose organic matter
- make (substances) radioactive