ace·​tyl | \ ə-ˈsē-tᵊl How to pronounce acetyl (audio) , ˈa-sə- How to pronounce acetyl (audio) , ˈa-sə-ˌtēl \

Definition of acetyl

: the radical CH3CO− of acetic acid often used in combination

Examples of acetyl in a Sentence

Recent Examples on the Web The acetyl glycyl beta-alanine ingredient in the formula stood out to Jaliman, who says this peptide will probably help lighten the pigment of a scar while also working to even out skin tone. Maya Gandara,, "Shoppers Swear By Derma-E’s Scar Gel For Healing Stubborn Acne Marks," 15 Apr. 2020 Buemi had a hunch that the same drug ring responsible for moving Molly into South Florida might also be importing the acetyl fentanyl pills. Alex W. Palmer, New York Times, "The China Connection: How One D.E.A. Agent Cracked a Global Fentanyl Ring," 17 Oct. 2019 Her death was ruled an accidental overdose from fentanyl, acetyl fentanyl and cocaine. Eliza Fawcett,, "20 deadly overdoses in 5 years at 2 West Side hotels. Why it’s so hard to tackle a few blocks of the opioid crisis," 17 Oct. 2019 Several years ago, Oberdoerffer followed a hunch that cells might use another simple chemical unit, an acetyl group, on mRNA. Ken Garber, Science | AAAS, "Hidden layer of gene control influences everything from cancer to memory," 1 July 2019 Cocaine, heroin and acetyl fentanyl were found in his system. Mark Curnutte,, "Girl who lost parents to heroin starts over: `I want a family'," 27 June 2018 In 2016, Chinese customs agents seized 70 kilograms of fentanyl and acetyl fentanyl in a cargo container that was bound for Mexico. Kristina Davis,, "Fentanyl has taken over America's drug market. Where is it coming from?," 17 June 2018 The coroner, Jonathan Lucas, said that Mr. Petty’s system showed traces of the drugs fentanyl, oxycodone, temazepam, alprazolam, citalopram, acetyl fentanyl and despropionyl fentanyl. Joe Coscarelli, New York Times, "Tom Petty Died From Accidental Drug Overdose Involving Opioids, Coroner Says," 19 Jan. 2018 Adding the acetyl tag is a natural mechanism used by cells to change the way histone interacts with DNA. Smithsonian, "Instead of Killing Bacteria, Can We Just “Turn Off” Its Ability To Cause Infections?," 14 Dec. 2017

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

1864, in the meaning defined above

History and Etymology for acetyl

borrowed from German Acetyl, from Latin acētum "vinegar" + German -yl -yl — more at acetic acid

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Time Traveler for acetyl

Time Traveler

The first known use of acetyl was in 1864

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Cite this Entry

“Acetyl.” Dictionary, Merriam-Webster, Accessed 15 Jan. 2021.

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More Definitions for acetyl


ace·​tyl | \ ə-ˈsēt-ᵊl How to pronounce acetyl (audio) , ˈas-ət-; ˈas-ə-ˌtēl How to pronounce acetyl (audio) \

Medical Definition of acetyl

: the radical CH3CO of acetic acid

More from Merriam-Webster on acetyl

Nglish: Translation of acetyl for Spanish Speakers

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