impurity

noun

1. (countable, uncountable)The condition of being impure; because of contamination, pollution, adulteration or insufficient purification.

   “Even animals in the Jewish system cause impurity only when they are dead.”

2. (countable, uncountable)A component or additive that renders something else impure.

   “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.”

3. (countable, uncountable)A state of immorality or sin; especially the weakness of the flesh: inchastity.

   “With his cheating, lying and stealing, he epitomised the impurity of humanity.”