adulterator

Definitions of adulterator
  1. noun
    any substance that lessens the purity or effectiveness of a substance
    synonyms: adulterant
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    type of:
    substance
    a particular kind or species of matter with uniform properties
  2. noun
    a changer who lessens the purity or effectiveness of a substance
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    type of:
    changer, modifier
    a person who changes something
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