ethanol

noun

eth·​a·​nol ˈe-thə-ˌnȯl How to pronounce ethanol (audio) -ˌnōl How to pronounce ethanol (audio)
British also ˈē-
: a colorless volatile flammable liquid C2H5OH that is the intoxicating agent in liquors and is also used as a solvent and in fuel

called also ethyl alcohol, grain alcohol

Examples of ethanol in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Today, more than 100 acres of Retter land, much of which used to grow corn for ethanol, now hosts solar panels for the Riverstart solar park ‒ a simple shift from one form of energy production to another. Sophie Hartley, USA Today, 21 Feb. 2026 Even using ethanol free fuel add a fuel stabilizer to keep the fuel from going stale. Hartford Courant, 21 Feb. 2026 Garay Sanchez’s cause of death was officially listed as environmental hypothermia with a contributory cause of ethanol, commonly known as alcohol, use, wrote Associate Miami-Dade Medical Examiners Jusmita Saifullan and Nicholas Barna in her autopsy released to the Miami Herald on Wednesday. Devoun Cetoute, The Orlando Sentinel, 16 Feb. 2026 Iowa is the nation's top producer of both corn and ethanol. Donnelle Eller, Des Moines Register, 13 Feb. 2026 See All Example Sentences for ethanol

Word History

First Known Use

1892, in the meaning defined above

Time Traveler
The first known use of ethanol was in 1892

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Cite this Entry

“Ethanol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ethanol. Accessed 1 Mar. 2026.

Kids Definition

ethanol

noun
eth·​a·​nol ˈeth-ə-ˌnȯl How to pronounce ethanol (audio)
-ˌnōl
: a colorless flammable easily evaporated liquid that is used to dissolve things and that is the substance in fermented and distilled liquors that can make one drunk

called also ethyl alcohol, grain alcohol

Medical Definition

ethanol

noun
eth·​a·​nol ˈeth-ə-ˌnȯl How to pronounce ethanol (audio) -ˌnōl How to pronounce ethanol (audio)
: a colorless volatile flammable liquid C2H5OH that is the intoxicating agent in liquors and is also used as a solvent

called also ethyl alcohol, grain alcohol

see alcohol sense 1

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