eth·​yl | \ ˈe-thəl How to pronounce ethyl (audio) \

Definition of ethyl

: an alkyl radical CH3CH2− derived from ethane

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Other Words from ethyl

ethylic \ e-​ˈthi-​lik How to pronounce ethyl (audio) \ adjective

Examples of ethyl in a Sentence

Recent Examples on the Web Those mouthwashes are ones that contain either 0.05%-0.1% cetylpyridinium chloride, 0.147% ethyl lauroyl arginate, or 0.2%-0.5% povidone-iodine. David Hogberg, Washington Examiner, 20 Apr. 2021 Estimates vary, but its odor detection threshold is probably around 0.1 or 0.2 micrograms per cubic meter, significantly lower than ethyl or methyl mercaptan. Randall Munroe, New York Times, 17 Feb. 2020 In the lab, to show me examples of the molecule ingredients, Lee unscrews a small vial of ethyl butyrate, a chemical compound found in some wines that gives off a pineapple aroma. Esther Mobley,, 20 Feb. 2020 Many non-toxic nail polishes are now going further, though, to eliminate others like formaldehyde resin, camphor, ethyl tosylamide, xylene, and TPHP. Lindsay Schallon, Glamour, 17 Feb. 2020 The Irish drugmaker estimates the new approval makes Vascepa, which is pronounced vas-EE’-puh and also is called icosapent ethyl, appropriate for up to 15 million U.S. patients. Washington Post, 13 Dec. 2019 The Irish drugmaker estimates the new approval makes Vascepa, which is pronounced vas-EE'-puh and also is called icosapent ethyl, appropriate for up to 15 million U.S. patients. NBC News, 13 Dec. 2019 Paraquat, the herbicide mentioned before, has a 42.7 percent fatality rate, but that same study found a 2.4 percent rate for glyphosate, another widely used herbicide, and a zero percent fatality rate for one called fenoxaprop-p-ethyl. Dylan Matthews, Vox, 15 Nov. 2018 But this lightweight formula contains something called ethyl lactyl retinoate, a proprietary blend of lactic acid and retinoids, that works to slowly, gently, and effectively smooth skin and fade discoloration with continued use. Chloe Metzger, Marie Claire, 10 Oct. 2018

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

1834, in the meaning defined above

History and Etymology for ethyl

German Ethyl (now Äthyl), from Äther ether + -yl

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Statistics for ethyl

Last Updated

30 Apr 2021

Cite this Entry

“Ethyl.” Dictionary, Merriam-Webster, Accessed 15 Jun. 2021.

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More Definitions for ethyl


eth·​yl | \ ˈeth-əl, British also ˈē-ˌthīl \

Medical Definition of ethyl

: a monovalent hydrocarbon radical C2H5

Other Words from ethyl

ethylic \ e-​ˈthil-​ik How to pronounce ethyl (audio) \ adjective

More from Merriam-Webster on ethyl Encyclopedia article about ethyl


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