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"impurity" is also used as a crossword clue. If that's what you saw, the answer is often contamination (13 letters).
Definitions
the condition of being impure
Word origin
From impure + -ity. From Middle French impurité, from Latin impuritas.
Used in a sentence
“Even animals in the Jewish system cause impurity only when they are dead.”
“The impurities in the iron ore made extraction of the iron very difficult.”
“An artificial kidney these days still means a refrigerator-sized dialysis machine. Such devices mimic the way real kidneys cleanse blood and eject impurities and surplus water as urine.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Contaminant”8 letters
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