methanol

noun

meth·​a·​nol ˈme-thə-ˌnȯl How to pronounce methanol (audio)
-ˌnōl
: a light volatile flammable poisonous liquid alcohol CH3OH used especially as a solvent, antifreeze, or denaturant for ethanol and in the synthesis of other chemicals

Examples of methanol in a Sentence

Recent Examples on the Web
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On Earth, methyl formate and acetaldehyde are used as industrial chemicals, methanol and ethanol are alcohols, and acetic acid is in vinegar. Keith Cooper, Space.com, 7 Nov. 2025 In November 2024, an American citizen was among six tourists who died in Laos, where alcohol tainted with methanol was blamed for poisoning them. Jay Ganglani, NBC news, 5 Nov. 2025 The incident comes after six tourists died in the Laos town of Vang Vieng last November, after drinking alcohol believed to have been contaminated with methanol. Becca Longmire, PEOPLE, 4 Nov. 2025 Rolls-Royce is ditching diesel for methanol with its new maritime engine, described as the world's first high-speed marine engine in its performance class to operate exclusively on pure wood alcohol for a potentially CO₂-neutral drivetrain. New Atlas, 30 Oct. 2025 See All Example Sentences for methanol

Word History

Etymology

International Scientific Vocabulary

First Known Use

1894, in the meaning defined above

Time Traveler
The first known use of methanol was in 1894

Cite this Entry

“Methanol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/methanol. Accessed 13 Nov. 2025.

Kids Definition

methanol

noun
meth·​a·​nol ˈmeth-ə-ˌnȯl How to pronounce methanol (audio)
-ˌnōl
: a light flammable poisonous liquid alcohol that consists of carbon, hydrogen, and oxygen and is used especially as antifreeze and to dissolve things

Medical Definition

methanol

noun
meth·​a·​nol ˈmeth-ə-ˌnȯl How to pronounce methanol (audio) -ˌnōl How to pronounce methanol (audio)
: a light volatile pungent flammable poisonous liquid alcohol CH3OH formed in the destructive distillation of wood or made synthetically and used especially as a solvent, antifreeze, or denaturant for ethanol and in the synthesis of other chemicals

called also carbinol, methyl alcohol, wood alcohol

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