ac·​et·​al·​de·​hyde | \ ˌa-sə-ˈtal-də-ˌhīd How to pronounce acetaldehyde (audio) \

Definition of acetaldehyde

: a colorless volatile water-soluble liquid aldehyde C2H4O used chiefly in organic synthesis

Examples of acetaldehyde in a Sentence

Recent Examples on the Web Using a new, precise chemical-identifying method, the group found evidence of an understudied mercury molecule called alpha-mercuri-acetaldehyde. Theresa Machemer, Smithsonian Magazine, "A Dead Cat’s Brain Revives Discussion of 1960s Mercury Poisoning Disaster in Japan," 26 Mar. 2020 Dihydromyricetin appears to work its magic by enhancing alcohol metabolism and reducing its toxic byproduct, acetaldehyde. Daryl Davies, Joshua Silva And Terry David Church, CNN, "Hangovers: Why you get them and how to fight them off," 27 Dec. 2019 The humble orbs contain the amino acid cysteine, which helps break down acetaldehyde, which is thought to be one of the causes of hangovers. Emily Heil, Washington Post, "5 worldly ways to beat a hangover, from pickled herring to Scotland’s famous soda," 30 Dec. 2019 Packard said the petrochemical plants emit hundreds of tons of toxic, carcinogenic pollutants, including butadiene, acetaldehyde, benzene and formaldehyde. Peter Fimrite,, "Environmental groups ban together to demand action on plastics from EPA," 3 Dec. 2019 The cysteine in eggs, bacon, and even broccoli might help with the absorption of acetaldehyde, and the nausea. Kyle Beechey, Bon Appétit, "I Tried Those New, Flashy Hangover Cures to See If They Worked," 25 Oct. 2019 The supplements will help move acetaldehyde, which is thought to be the main component responsible for inflammation and other hangover symptoms, through your system faster. Rosa Heyman, Redbook, "6 Hangover Hacks That Will Save Your Sunday," 13 Mar. 2015 The body breaks down alcohol into a chemical, acetaldehyde, that can damage cellular DNA and potentially cause cancer. Joel Achenbach, The Seattle Times, "A huge clinical trial collapses, and research on alcohol remains befuddling," 6 Aug. 2018 Meanwhile, the blood concentration of acetaldehyde – a highly toxic compound that is carcinogenic, causes headaches and vomiting, makes people blush after drinking, and is produced during the normal alcohol metabolism – remained extremely low. Yunfeng Lu,, "A hangover pill? Tests on drunk mice show promise," 11 May 2018

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

1857, in the meaning defined above

History and Etymology for acetaldehyde

borrowed from German Acetaldehyd, from acet- acet- + Aldehyd aldehyde

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Time Traveler for acetaldehyde

Time Traveler

The first known use of acetaldehyde was in 1857

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Statistics for acetaldehyde

Cite this Entry

“Acetaldehyde.” Dictionary, Merriam-Webster, Accessed 10 Aug. 2020.

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More Definitions for acetaldehyde


ac·​et·​al·​de·​hyde | \ ˌas-ə-ˈtal-də-ˌhīd How to pronounce acetaldehyde (audio) \

Medical Definition of acetaldehyde

: a colorless volatile water-soluble liquid aldehyde C2H4O used chiefly in organic synthesis that can cause irritation to mucous membranes

More from Merriam-Webster on acetaldehyde

Nglish: Translation of acetaldehyde for Spanish Speakers Encyclopedia article about acetaldehyde

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