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English definition of “contaminate”

contaminate

verb [T]     /kənˈtæm.ɪ.neɪt/
to make something less pure or make it poisonous: Much of the coast has been contaminated by nuclear waste. The food which had been contaminated was destroyed.Making things dirty and untidy contaminated     /-neɪ.tɪd/ US  /-neɪ.t̬ɪd/ adjective The infection was probably caused by swimming in contaminated water/water contaminated with sewage.Dirty and untidy contamination     /kənˌtæm.ɪˈneɪ.ʃən/ noun [U] The water supply is being tested for contamination (= the presence of unwanted or dangerous substances).Dirt and untidiness
(Definition of contaminate verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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