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English definition of “pollutant”

pollutant

noun [C]     /pəˈluː.tənt/ US  /-t̬ənt/
a substance that pollutes : Sulphur dioxide is one of several pollutants that are released into the atmosphere by coal-fired power stations .Environmental issuesRubbish and wasteProtection and protectorsDirt and untidiness
(Definition of pollutant noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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