- adulterant, adulterator - any substance that adulterates (lessens the purity or effectiveness of a substance); "it is necessary to remove the adulterants before use"
--1 is a kind of substance, matter
Derived form: verb adulterate1 - adulterator - a changer who lessens the purity or effectiveness of a substance
--2 is a kind of changer, modifier
Derived form: verb adulterate1