activate

Verb

• make (substances) radioactive

• aerate (sewage) so as to favor the growth of organisms that decompose organic matter

• make more adsorptive
  • activate a metal
    

• make active or more active
  • activate an old file
    

• put in motion or move to act
  • trigger a reaction
    
  • actuate the circuits
    

Related words

• Synonyms: 
  aerate , trip , actuate , trigger , set off , spark off , spark , trigger off , touch off
• Antonyms: 
  inactivate , deactivate