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English definition of “pollute”

pollute

verb [T] uk   /pəˈluːt/ us  
B2 to make an area or substance, usually air, water, or earth, dirty or harmful to people, animals, and plants, especially by adding harmful chemicals: The pesticides used on many farms are polluting the water supply. We won't invest in any company that pollutes the environment.figurative Many complain that broadcasters pollute the airwaves with sensationalism and sleaze.
(Definition of pollute from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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