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Synonyms
ac·ti·vate (ăḱtə-vāt́)

transitive verb: -vat·ed, -vat·ing, -vates. 

  1. To set in motion; make active or more active.
  2. To organize or create (a military unit, for example): activate the National Guard.
  3. To treat (sewage) with aeration and bacteria to aid decomposition.
  4. Chemistry To accelerate a reaction in, as by heat.
  5. Physics To make (a substance) radioactive.
  6. Biology To convert (certain biological compounds) into biologically active derivatives.

derivatives

aćti·vátion
noun
aćti·vátor
noun