pollutant

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English

Etymology

From pollute +‎ -ant.

Pronunciation

  • IPA(key): /pəˈl(j)uːtənt/
  • Audio (US):(file)

Noun

pollutant (plural pollutants)

  1. A foreign substance that makes something dirty, or impure, especially waste from human activities.
    • 1987 January 20, “Airborne Pollutants”, in The New York Times‎, →ISSN:
      Acid rain forms when water in the atmosphere condenses on particles containing acid-forming pollutants, such as sulfate produced by the burning of fossil fuels and nitrogen oxides from automobile exhausts.

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