Longman Dictionary of Contemporary English homepage

Date: 1400-1500
Language: Latin
Origin: , past participle of contaminare, from contamen 'contact'

contaminate

verb
     
con‧tam‧i‧nate [transitive]
1HCSGE to make a place or substance dirty or harmful by putting something such as chemicals or poison in it:
Drinking water supplies are believed to have been contaminated.
2 to influence something in a way that has a bad effect:
He claims the poster ads have 'contaminated Berlin's streets'.
contamination noun [uncountable]
radioactive contamination

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