adulterator
1. [ noun ] any substance that adulterates (lessens the purity or effectiveness of a substance)
Synonyms: adulterant
Examples:

"it is necessary to remove the adulterants before use"

Related terms: substance adulterate
2. [ noun ] a changer who lessens the purity or effectiveness of a substance
Related terms: changer adulterate
Similar spelling:   adulterate
  adulterant
  adultery
  adulterated
  adulterer
  adulteration
  adulterating
  adulterous
  adulterine
  adulteress
  adulterously
  adult_tooth
  adult_female
  adulator
  adulatory