meth·​yl | \ ˈme-thəl How to pronounce methyl (audio) \

Definition of methyl

: an alkyl radical CH3 derived from methane

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Other Words from methyl

methylic \ mə-​ˈthi-​lik How to pronounce methylic (audio) \ adjective

Examples of methyl in a Sentence

Recent Examples on the Web According to the Academy of General Dentistry, the allyl methyl sulfide in coffee, onions and garlic can stay in your bloodstream and be expelled via your breath up to 72 hours after consumption. Sandee Lamotte, CNN, "Bad breath behind that coronavirus mask? 10 reasons -- and remedies -- for your halitosis," 5 May 2020 Farmer and Ryan worked with local sagebrush, which produce copious amounts of methyl jasmonate, an airborne organic chemical that Ryan thought plants were using to ward off insect herbivores. Quanta Magazine, "The Secret Language of Plants," 16 Dec. 2013 Liu is part of an academic group running studies of another blood test, developed by the biotech Grail, which looks at patterns of methyl groups on cell-free DNA to detect cancers. Jocelyn Kaiser, Science | AAAS, "DNA blood test spots cancers in seemingly cancer-free women, but also produces false alarms," 28 Apr. 2020 The company is also testing bardoxolone methyl in two other kidney disease trials. Connor Pittman, Dallas News, "Coronavirus threat forces Reata Pharmaceuticals to halt two experimental drug trials," 1 Apr. 2020 White wanted to find a way to add a methyl group at the end of the drug building process. Robert F. Service, Science | AAAS, "Newly discovered ‘magic methyl’ reaction could turbocharge the potency of some drugs," 16 Mar. 2020 So in 2020 there will be more of that, and less PEG 120 methyl glucose dioleate. Shalwah Evans, Essence, "15 Beauty Resolutions I Plan To Keep In 2020, And You Should Too," 1 Jan. 2020 As both humans and dogs age, methyl groups are added to our DNA molecules, which can change the activity of a DNA segment without altering the DNA. Fox News, "Your dog’s real age in ‘dog years’ revealed (and it’s not their age multiplied by seven)," 19 Nov. 2019 This process of adding methyl groups to DNA is called methylation, and is said to be linked to biological development and growth. Claudia Harmata,, "There's a Better Way Calculate Your Dog's True Age in Dog Years, Researchers Say," 19 Nov. 2019

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

1840, in the meaning defined above

History and Etymology for methyl

International Scientific Vocabulary, back-formation from methylene

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Time Traveler for methyl

Time Traveler

The first known use of methyl was in 1840

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Statistics for methyl

Last Updated

16 May 2020

Cite this Entry

“Methyl.” Dictionary, Merriam-Webster, Accessed 10 Jul. 2020.

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More Definitions for methyl


meth·​yl | \ ˈmeth-əl, British also ˈmē-ˌthīl \

Medical Definition of methyl

: an alkyl group CH3 that is derived from methane by removal of one hydrogen atom

Other Words from methyl

methylic \ mə-​ˈthil-​ik How to pronounce methylic (audio) \ adjective

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More from Merriam-Webster on methyl

Rhyming Dictionary: Words that rhyme with methyl

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

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