verb
- Put in motion or move to act.
- usage: "trigger a reaction"; "actuate the circuits"
- Make active or more active.
- usage: "activate an old file"
- Make more adsorptive.
- usage: "activate a metal"
- Aerate (sewage) so as to favor the growth of organisms that decompose organic matter.
- synonyms: aerate
- Make (substances) radioactive. .