polyethylene glycol

noun

Definition of polyethylene glycol

: any of a series of polymers H(OCH2CH2)nOH where n is greater than three that vary from viscous liquids to waxy solids and are used especially as lubricants and in medical and biotechnological applications abbreviation PEG

Examples of polyethylene glycol in a Sentence

Recent Examples on the Web Researchers try to preserve the wood’s structure temporarily by coating the pieces with polyethylene glycol or literally zapping it with a giant freeze dryer, but that doesn’t last forever. Sara Kiley Watson, Popular Science, "How scientists keep ancient shipwrecks from crumbling into dust," 2 Nov. 2020 In order to preserve wood from these wrecks, they must be submerged for months, or even years, in massive pools of polyethylene glycol, Mondelli says. Sara Kiley Watson, Popular Science, "How scientists keep ancient shipwrecks from crumbling into dust," 2 Nov. 2020 But the best addition turned out to be polyethylene glycol that had, in a sense, expired. Katherine J. Wu, Smithsonian Magazine, "Here’s How to Blow the Perfect Giant Soap Bubble, According to Physics," 7 Feb. 2020 The most common polymers included in the recipes, the team observed, were guar, a common food additive, and a lubricant called polyethylene glycol. Katherine J. Wu, Smithsonian Magazine, "Here’s How to Blow the Perfect Giant Soap Bubble, According to Physics," 7 Feb. 2020 To preserve timbers from shipwrecks, conservators have to slowly replace the water with preservatives, like polyethylene glycol (PEG). Kiona N. Smith, Ars Technica, "Archaeologists in Norway are about to dig up a Viking ship," 28 May 2020 But even commercial liquids contain ingredients such as polyethylene glycol that Picciotto said don’t belong in the lungs. Sarah Allen, Science | AAAS, "Teen vaping is bad. Nicotine makes it worse, says researcher," 16 Feb. 2020 While the research is still in its infancy, multiple studies have shown that polyethylene glycol breaks down into carcinogens when vaped at high temperatures. Elizabeth Hernandez, The Denver Post, "Colorado marijuana regulators finalizing ban on certain additives in cannabis vape products," 14 Oct. 2019 Medium chain triglycerides are sold in oil form as a dietary supplement, and polyethylene glycol is the active ingredient in over-the-counter laxatives. Erika Edwards, NBC News, "Michigan teen needed new lungs because of vaping," 12 Nov. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'polyethylene 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 polyethylene glycol

1886, in the meaning defined above

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Time Traveler for polyethylene glycol

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The first known use of polyethylene glycol was in 1886

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Last Updated

23 Nov 2020

Cite this Entry

“Polyethylene glycol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polyethylene%20glycol. Accessed 25 Nov. 2020.

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More Definitions for polyethylene glycol

polyethylene glycol

noun

Medical Definition of polyethylene glycol

: any of a series of polymers H(OCH2CH2)nOH where n is greater than three that vary from viscous liquids to white solids and are used in medicine especially as laxatives and as bases for pharmaceutical ointments and cosmetic creams abbreviation PEG

Note: The covalent attachment of polyethylene glycol chains to biomolecules ((see pegylation)) is used especially to improve the bioavailability, solubility, and stability of therapeutic agents and to reduce their immunogenicity.

More from Merriam-Webster on polyethylene glycol

Britannica.com: Encyclopedia article about polyethylene glycol

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