Also found in: Thesaurus, Medical, Legal, Financial, Encyclopedia, Wikipedia.
Related to pollutant: primary pollutant, Water pollutant
Something that pollutes, especially a waste material that contaminates air, soil, or water.
(Environmental Science) a substance that pollutes, esp a chemical or similar substance that is produced as a waste product of an industrial process
1. something that pollutes.
2. any substance, as a chemical or waste product, that renders the air, water, or other natural resource harmful or generally unusable.
A substance, especially a waste material, that contaminates air, water, or soil.
Switch to new thesaurus
|Noun||1.||pollutant - waste matter that contaminates the water or air or soil|
DDT, dichlorodiphenyltrichloroethane - an insecticide that is also toxic to animals and humans; banned in the United States since 1972
CFC, chlorofluorocarbon - a fluorocarbon with chlorine; formerly used as a refrigerant and as a propellant in aerosol cans; "the chlorine in CFCs causes depletion of atmospheric ozone"
halon - a compound in which the hydrogen atoms of a hydrocarbon have been replaced by bromine and other halogen atoms; very stable; used in fire extinguishers although it is thought to release bromine that depletes the ozone layer
nitrogen oxide - any of several oxides of nitrogen formed by the action of nitric acid on oxidizable materials; present in car exhausts
waste, waste material, waste matter, waste product - any materials unused and rejected as worthless or unwanted; "they collect the waste once a week"; "much of the waste material is carried off in the sewers"