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PFAS

[ pee-fas ]

noun

  1. perfluoroalkyl and polyfluoroalkyl substances: long-lasting chemicals used in cleaning products, cookware coating, fire-fighting foams, makeup, stain-resistant carpeting, etc., that remain in the environment because they break down very slowly, and subsequently accumulate within animals and people: among the substances known as forever chemicals.


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Word History and Origins

Origin of PFAS1

First recorded in 1990–95; by shortening

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