me·​thyl·​amine ˌme-thə-lə-ˈmēn How to pronounce methylamine (audio)
: a flammable explosive gas CH3NH2 with a strong ammoniacal odor used especially in organic synthesis (as of dyes and insecticides)

Examples of methylamine in a Sentence

Recent Examples on the Web There was one scene when Walt and Jesse [his partner-in-crime] were going to steal one gallon of methylamine but could only get a 30-gallon drum. Valerie Ross, Discover Magazine, 31 Oct. 2012 With careful attention to detail, the team had to replace every beaker, tub of methylamine, round-bottom flask and more. Ethan Shanfeld, Variety, 3 Aug. 2022 In Breaking Bad, Walt is forced to steal great quantities of methylamine to keep his laboratory churning out drugs. William Herkewitz, Popular Mechanics, 19 Aug. 2013

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'methylamine.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


International Scientific Vocabulary

First Known Use

1850, in the meaning defined above

Time Traveler
The first known use of methylamine was in 1850

Dictionary Entries Near methylamine

Cite this Entry

“Methylamine.” Dictionary, Merriam-Webster, Accessed 25 Feb. 2024.

Medical Definition


: a flammable explosive gas CH5N with a strong ammoniacal odor used especially in organic synthesis (as of insecticides)

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