: diol
especially : ethylene glycol

Example Sentences

Recent Examples on the Web Diethylene glycol and ethylene glycol are industrial versions of the glycerine found in propylene glycol, which is a necessary ingredient in making cough syrup. Diego Lasarte, Quartz, 10 Mar. 2023 Ethylene glycol is commonly found in anti-freeze used in motor vehicles. Swati Gupta, CNN, 30 Dec. 2022 Polyethylene glycol is among a growing list of treatments (including drugs, stem cells and gene therapies) showing promise in pre-clinical studies, but the path to real-world applications is notoriously tricky. Andrew Jackson, Discover Magazine, 2 Feb. 2016 This operates at 800 volts, supports fast-charging, and is actively cooled using a water-glycol mix. Mike Duff, Car and Driver, 7 Dec. 2022 Propylene glycol, disodium EDTA, phenoxyethanol, and ethylhexylglycerin are all forms of preservatives to extend the life and efficacy of the gloss. Madison Yauger, Peoplemag, 7 Nov. 2022 Ethylene glycol is used in radiators, because it’s not only an antifreeze, but also a coolant. Ray Magliozzi, San Diego Union-Tribune, 9 Oct. 2022 Ethylene glycol is not a typical part of normal toxicology screenings and requires specific testing to detect, which is why it was missed during the initial autopsy. Joseph Diaz, ABC News, 25 Feb. 2022 Polyethylene glycol is a common active ingredient in over-the-counter laxatives. Erika Edwards, NBC News, 5 Apr. 2021 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'glycol.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


International Scientific Vocabulary glyc- + -ol

First Known Use

1857, in the meaning defined above

Time Traveler
The first known use of glycol was in 1857

Dictionary Entries Near glycol

Cite this Entry

“Glycol.” Dictionary, Merriam-Webster, Accessed 4 Jun. 2023.

Medical Definition


: ethylene glycol
broadly : a related alcohol containing two hydroxyl groups

More from Merriam-Webster on glycol

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