'adulterant' definitions:
Definition of 'adulterant'
(from WordNet)
adjective
Making impure or corrupt by adding extraneous materials; "the adulterating effect of extraneous materials" [syn: adulterating, adulterant] [ant: purifying]
noun
Any substance that lessens the purity or effectiveness of a substance; "it is necessary to remove the adulterants before use" [syn: adulterant, adulterator]