plural PFOAs
: a fluorinated carboxylic acid C8HF15O that is a member of the PFAS group and that has been used especially for its water and stain resistance (as in carpeting and upholstery), as a surfactant (as in firefighting foam), as a coating for nonstick cookware, and as an emulsifier in the synthesis of fluorinated polymers : perfluorooctanoic acid
Used in thousands of products from cookware to kids' pajamas to takeout coffee cups, PFOA is a likely human carcinogen, according to a science panel commissioned by the Environmental Protection Agency. Leslie Savan
Some companies use PFOA to help their nonstick coatings spread evenly over the cookware during manufacturing. David Schardt
PFOA and some closely related chemicals (such as PFOS) are now no longer made in the US, although they are still made in some other countries … American Cancer Society

called also perfluorooctanoate

Examples of PFOA in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The pots and pans are nonstick, dishwasher safe, and PFOA free. Shalwah Evans, People.com, 18 Feb. 2025 For Garmin wearers, the company has been working to ban two specific PFAS (PFOA and PFOS) from their products, including watch bands, though that doesn’t mean all Garmin watch bands are currently 100% PFAS free. Bethany Mavis, Outside Online, 16 Feb. 2025

Word History

First Known Use

1983, in the meaning defined above

Time Traveler
The first known use of PFOA was in 1983

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Cite this Entry

“PFOA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/PFOA. Accessed 28 Mar. 2025.

Last Updated: - Updated example sentences
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