The action of adulterating, being mixed with extraneous material, illicit substitution of one substance for another.(noun)
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Use "adulteration" in a sentence
"They also know how to select herbs from reputable producers so that the risk of adulteration is minimized."
"On returning to his native land, he still continued to turn his chemical knowledge to account, by giving his services to that particular branch of our commercial industry which is commonly described as the adulteration of commodities; and from this he had gradually risen to the more refined pursuit of adulterating gold and silver -- or, to use the common phrase again, making bad money."
"When this method was first introduced, it was calumniated and despised -- called adulteration of wine, and even prohibited by the governments of Europe; but, DR."