im ‧ pu ‧ ri ‧ ty /ɪmˈpjʊərəti, ɪmˈpjʊərɪti $ -ˈpjʊr-/ BrE AmE noun ( plural impurities )
[ Word Family: noun : ↑ purification , ↑ purist , ↑ purity ≠ ↑ impurity , ↑ purifier ; verb : ↑ purify ; adverb : ↑ purely ; adjective : ↑ pure ≠ ↑ impure ]
1 . [countable usually plural] a substance of a low quality that is contained in or mixed with something else, making it less pure:
All natural minerals contain impurities.
Our oatmeal face mask absorbs impurities from your skin.
2 . [uncountable] the state of being impure