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 methyl (audio) \ adjective

Examples of methyl in a Sentence

Recent Examples on the Web The idea is that small chemicals like methyl groups can be added to or removed from DNA histones—the proteins around which DNA is wound—or other proteins in the cell as a result of a memory-forming experience. Jennifer Frazer, Scientific American, 28 May 2021 Sarin’s main ingredient is methyl phosphonyl difluoride. Cnn Editorial Research, CNN, 20 May 2021 Foxiness is most often found in Vitis labrusca, a species that includes the Concord grape, and the flavor is thought to be related to the compound methyl anthranilate, which is used to flavor grape soda, candy and other industrial food products. Esther Mobley, San Francisco Chronicle, 19 May 2021 An important way that cells turn genes on and off at the right time and place is by attaching chemical tags called methyl groups to sites that control gene activity. Bob Holmes, Smithsonian Magazine, 18 May 2021 The second tested the effects of spraying methyl anthranilate around the bait box. Stephen Ornes, The Atlantic, 15 May 2021 The land slated for Dollar General was previously occupied by an ExxonMobil fuel station, which experienced a leak of the gasoline additive methyl tert-butyl ether, or MTBE, in 2004. David Anderson,, 13 May 2021 In fact, more nail polish brands than ever have eliminated methyl acrylate and other potential irritants. Leah Prinzivalli, Allure, 22 Apr. 2021 The formula contains kaolin and bentonite clays to help soak up oils without stripping the skin, along with a sodium methyl cocoyl taurate. Sarah Y. Wu, Marie Claire, 7 Apr. 2021

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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Learn More About methyl

Statistics for methyl

Last Updated

2 Jun 2021

Cite this Entry

“Methyl.” Dictionary, Merriam-Webster, Accessed 19 Jun. 2021.

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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 methyl (audio) \ adjective

More from Merriam-Webster on methyl

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


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