adulterator

Noun adulterator has 2 senses

• adulterator(n = noun.substance) adulterant - any substance that lessens the purity or effectiveness of a substance; "it is necessary to remove the adulterants before use"
is a kind of substance
Derived form verb adulterate₁

• adulterator(n = noun.person) - a changer who lessens the purity or effectiveness of a substance;
is a kind of changer, modifier
Derived form verb adulterate₁