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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While the students were cleaning, methanol used for the demonstration had accidentally spilled and ignited, resulting in injuries to the students, said district Superintendent Denise Rugani. Hema Sivanandam, Mercury News, 28 May 2026 The entire strategy of Charbone is onsite transformation of the hydrogen, which can then be used for electricity for data centers, high-purity hydrogen for specialized uses, or it can be [turned] into methanol, for example, for the shipping industry, into SAF for the aviation industry, and so on. Alan Ohnsman, Forbes.com, 26 May 2026 Interestingly, the membrane worked well even when concentrated methanol was used as a fuel. Ameya Paleja, Interesting Engineering, 18 May 2026 That’s a handy vintage mix of 50% methanol, 40% premium unleaded and 10% toluene. New Atlas, 8 May 2026 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 3 Jun. 2026.

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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