Meaning of “contaminate” in the English Dictionary

"contaminate" in British English

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contaminateverb [ T ]

uk /kənˈtæm.ɪ.neɪt/ us /kənˈtæm.ə.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.
contaminated
adjective uk /kənˈtæm.ɪ.neɪ.tɪd/ us /kənˈtæm.ə.neɪ.t̬ɪd/

The infection was probably caused by swimming in contaminated water/water contaminated with sewage.
contamination
noun [ U ] uk /kənˌtæm.ɪˈneɪ.ʃən/ us /kənˌtæm.əˈneɪ.ʃən/

The water supply is being tested for contamination (= the presence of unwanted or dangerous substances).

(Definition of “contaminate” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"contaminate" in American English

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contaminateverb [ T ]

us /kənˈtæm·əˌneɪt/

to make something less pure or make it poisonous:

The disease can be caused by a variety of viruses, bacteria, and other small organisms that contaminate food or water.
contaminated
adjective us /kənˈtæm·əˌneɪ·t̬ɪd/

contaminated water
contamination
noun [ U ] us /kənˌtæm·əˈneɪ·ʃən/

We discovered lead (= soft, gray metal ) contamination in the paint.

(Definition of “contaminate” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"contaminate" in Business English

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contaminateverb [ T ]

uk /kənˈtæmɪneɪt/ us ENVIRONMENT

to make something less pure or make it poisonous:

The government recently reported that 10% of farmland has been destroyed by pollution and that heavy metals contaminate 12 million tons of grain a year.
There are fears that exported products could contaminate food supplies abroad.
contamination
noun [ U ]

The report concluded that bacterial contamination at the factory could occur no matter what technology was being used.

(Definition of “contaminate” from the Cambridge Business English Dictionary © Cambridge University Press)