adulterator

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WordNet Dictionary

	Definition:	[n] a changer who lessens the purity or effectiveness of a substance [n] any substance that adulterates (lessens the purity or effectiveness of a substance); "it is necessary to remove the adulterants before use"

	Synonyms:	adulterant

	See Also:	changer, matter, modifier, substance

Webster's 1913 Dictionary

	Definition:	\Adul"tera`tor\, n. [L.] One who adulterates or corrupts. [R.] --Cudworth.