perfluorooctanic acid, definition of

A fluorinated chemical thought to be a carcinogen that is turning up in the bloodstream of humans and animals. PFOA and related perfluorochemicals have been used for decades to make a variety of nonstick and water-repellent products, including Teflon and other nonstick cookware, stain treatments for carpets, waterproof clothing, greaseproof liners of food packaging, and some personal care products.

In 2006, manufacturers reached a voluntary agreement with the U.S. EPA to eliminate almost all use of PFOA by 2015, although the use of other fluorinated chemicals will continue.