: 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.
Sweat itself is mostly water and salt, with some potassium and magnesium and small amounts of glucose, ethanol, hormones and other compounds mixed in. Hanna Wickes, Kansas City Star, 9 Sep. 2026 Brazilian mills can typically shift their production mix between sugar and ethanol, depending on which is more profitable. Deena Zaidi, CNBC, 6 Sep. 2026 Only ethanol is safe to drink, but some counterfeit producers may dilute it with methanol. Maryna Holovnova, New Atlas, 31 Aug. 2026 The alcohol that generally makes a person feel drunk is ethanol, but adult beverages often contain small quantities of methanol, which build up while the ethanol is being processed by the body. Shayla Love, New Yorker, 26 Aug. 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

Browse Nearby Words

Cite this Entry

“Ethanol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ethanol. Accessed 13 Sep. 2026.

Kids Definition

ethanol

noun
: 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

: 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

More from Merriam-Webster on ethanol

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster