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has contaminated
  • present perfect of contaminate (3rd person singular).

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Marissa Moss: And he's very befuddled and confused and he thinks something has contaminated his work.

From Scientific American • Sep. 7, 2023

Mercury from the plant has contaminated the seabed, a 2020 report by Tuscany’s environmental protection agency said, while a 2017 finding by the Institute for Coastal Marine Environment said the material discharged threatens seagrass.

From Reuters • Sep. 6, 2022

Sergeyich finally decides it is time to leave the village when he notices his bees are producing bitter honey — burned gunpowder has contaminated the pollen they collect.

From New York Times • May 24, 2022

The actions mark the first time the EPA has enforced a 2015 rule aimed at reducing groundwater pollution from coal-fired power plants that has contaminated streams, lakes and underground aquifers.

From Seattle Times • Jan. 11, 2022

Environmentalists say that for decades Canadian mining has contaminated downstream waters, killing and deforming fish.

From Washington Times • Jun. 13, 2019