propylene glycol


Definition of propylene glycol

: a sweet hygroscopic viscous liquid C3H8O2 made especially from propylene and used especially as an antifreeze and solvent, in brake fluids, and as a food preservative

Examples of propylene glycol in a Sentence

Recent Examples on the Web

Physicians have warned parents and teens about the ingredients found in e-cigarettes, including chemicals like propylene glycol and glycerin, along with nicotine and its addictive properties. Kate Thayer,, "5 deaths have been linked to vaping. Officials are urging consumers to stop.," 7 Sep. 2019 Most e-cigarettes contain colorless, flavorless chemicals such as propylene glycol and vegetable glycerin, which create an inhalable vapor when heated. Washington Post, "What we know about the US vaping illness outbreak," 12 Sep. 2019 New England Treatment Access, which runs a cannabis store in Brookline, sells inexpensive vape pens cut with propylene glycol, a common food additive that experts said could be dangerous to inhale. Naomi Martin,, "Are marijuana vapes from licensed stores safe? Mass. lacks regulations on additives," 6 Sep. 2019 Vape cartridges also contain liquids with chemicals like propylene glycol and vegetable glycerine, which are heated and vaporized for inhalation. Emma Keith, Detroit Free Press, "Michigan's ban on flavored vaping products: What to know," 4 Sep. 2019 The solvents most often used in vapes are vegetable glycerin and propylene glycol. NBC News, "What is in a vape? Everything you need to know," 3 Sep. 2019 Essentially, an e-cigarette contains a liquid solvent (such as propylene glycol or vegetable glycerin), nicotine, and some sort of flavoring, Humberto Choi, M.D., a pulmonologist and critical care specialist at Cleveland Clinic, tells SELF. Sarah Jacoby, SELF, "5 Things We Still Don’t Know About Those Vaping-Related Hospitalizations," 28 Aug. 2019 In contrast, most legal, nicotine-containing e-liquids are alcohol-based and contain as excipients some combination of propylene glycol and glycerin. Michael Siegel, National Review, "CDC’s Bias Against E-Cigarettes Is Putting Kids’ Lives at Risk," 27 Aug. 2019 Their products do not include fillers, propylene glycol, petrochemicals or petroleum by-products, and your skin will thank you for it. Bianca Nieves, Teen Vogue, "The 12 Best Clean Beauty Brands Available on Amazon," 23 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'propylene glycol.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of propylene glycol

1870, in the meaning defined above

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Statistics for propylene glycol

Last Updated

8 Oct 2019

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Time Traveler for propylene glycol

The first known use of propylene glycol was in 1870

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More Definitions for propylene glycol

propylene glycol


Medical Definition of propylene glycol

: a sweet hygroscopic viscous liquid C3H8O2 made especially from propylene and used especially as an antifreeze and solvent, in brake fluids, and as a food preservative

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