forever chemical

noun

plural forever chemicals
: a toxic substance and especially a synthetic chemical (as of the per- and polyfluoroalkyl substances group) that persists and accumulates in the environment
not used technically
Canadian researchers have discovered high levels of a "forever chemical", used in making toilet paper, in the bodies of endangered killer whales, sparking fears the toxic substance could further harm them.Leyland Ceccoin
Landfills, military bases and firefighting training centers also are thought to be sources of forever chemical pollution.Sammy Fretwell
often used in plural
PFAS, or per- and polyfluoroalkyl substances, are colloquially known as "forever chemicals" because they are so difficult to break down.Layne Cameron
Forever chemicals are used as surface treatments to block water and stains. In fact, a 2022 report by Toxic-Free Future, an environmental health research and advocacy organization, found that nearly three-quarters of products labeled as water- or stain-resistant tested positive for them.Hannah Norman
PFAS, a group of manufactured chemicals commonly used since the 1940s, are called "forever chemicals" for a reason. Bacteria can't eat them; fire can't incinerate them; and water can't dilute them.Amanda Morris
Van Zile said many people love a Wisconsin Friday fish fry, but many fish are found with high levels of forever chemicals, such as mercury, and that we're slowly poisoning ourselves.Frank Vaisvilas

Examples of forever chemical 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.
Even the community sources of drinking water in Black communities are more likely to be polluted with forever chemicals (PFAS) and other waste compared to those in majority White communities. Essence, 15 Feb. 2025 Here’s how to test for and reduce your exposure to these forever chemicals in your water. Stephanie Brown, Verywell Health, 27 Jan. 2025 Related article Biden administration sets first national standard to limit ‘forever chemicals’ in drinking water Sewage sludge has been used by some farmers for years. Jen Christensen, CNN, 14 Jan. 2025 The new policy shows that the EPA is committed to carrying out the Biden administration's goal of increasing transparency on forever chemicals, even as the White House is set to change hands in just a few weeks. Kevin Lynn, Newsweek, 6 Jan. 2025 See all Example Sentences for forever chemical 

Word History

First Known Use

2010, in the meaning defined above

Time Traveler
The first known use of forever chemical was in 2010

Dictionary Entries Near forever chemical

Cite this Entry

“Forever chemical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/forever%20chemical. Accessed 21 Feb. 2025.

Last Updated: - Updated example sentences
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