per

Example Sentences

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The analysis also found that 64 percent of samples contained at least one per- and polyfluoroalkyl substance, also known as "forever chemicals", which are found throughout the environment and everyday products.

From Barron's • Jan. 29, 2026

There are nearly 15,000 per- and polyfluoroalkyl chemicals, and for decades, their use has been widespread in everything from nonstick cookware and stain-resistant carpets to refrigeration systems.

From Salon • Dec. 9, 2024

PFAS, a vast class of chemicals also called per- and polyfluoroalkyl substances, are widespread in the environment.

From New York Times • Jun. 10, 2024

Man-made per- and polyfluoroalkyl substances, known as PFAS, are found in all sorts of industrial and consumer products, including carpets, rain jackets, and makeup.

From Slate • Apr. 18, 2024

Averse implies reluc- tance or unwillingness, and usually characterizes a per- son.

From "Woe Is I" by Patricia T. O'Conner