Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The quality or condition of being impure, especially:
  • n. Contamination or pollution.
  • n. Lack of consistency or homogeneity; adulteration.
  • n. A state of immorality; sin.
  • n. Something that renders something else impure; an inferior component or additive.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The condition of being impure; because of contamination, pollution, adulteration or insufficient purification.
  • n. A component or additive that renders something else impure.
  • n. A state of immorality or sin; especially the weakness of the flesh: inchastity.

from the GNU version of the Collaborative International Dictionary of English

  • n. The condition or quality of being impure in any sense; defilement; foulness; adulteration.
  • n. That which is, or which renders anything, impure; foul matter, action, language, etc.; a foreign ingredient.
  • n. Lack of ceremonial purity; defilement.

from The Century Dictionary and Cyclopedia

  • n. The condition or quality of being impure, in either a physical or a moral sense.
  • n. That which is or makes impure, physically or morally: as, impurities in a liquid.
  • n. Synonyms Uncleanness, dirtiness, filthiness; immodesty, ribaldry, grossness, vulgarity.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. worthless or dangerous material that should be removed
  • n. the condition of being impure

Etymologies

impure +‎ -ity (Wiktionary)

Examples

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