contaminate

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contaminate

[kən′tam·ə‚nāt]
(science and technology)
To render unfit or to soil by the introduction of foreign or unwanted material.
References in periodicals archive ?
history, for contaminating the community's drinking water with MTBE.
Plaintiffs are seeking damages for injuries resulting from Malt-O-Meal's alleged failure to discover and prevent salmonella from contaminating its toasted oats cereal products that were manufactured between March and May, 1998 and distributed for human consumption nationwide.
Because residues of the defoliating herbicides that rained over South Vietnam may still be present in river sediments and soil, contaminating fish and other foods, southern Vietnamese exposures to these chemicals may be more recent, if not higher, than those experienced by American servicemen, he notes.

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