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[meth-uh-luh-meen, -uh l-am-in] /ˌmɛθ ə ləˈmin, -əlˈæm ɪn/
noun, Chemistry
any of three derivatives of ammonia in which one or all of the hydrogen atoms are replaced by methyl groups, especially a gas, CH 5 N, with an ammonialike odor, the simplest alkyl derivative of ammonia and, like the latter, forming a series of salts.
Also called monomethylamine.
Origin of methylamine
1840-50; methyl- + amine Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for methylamine


a colourless flammable water-soluble gas, used in the manufacture of herbicides, dyes, and drugs. Formula: CH3NH2
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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methylamine in Science
  (měth'ə-lə-mēn', -lām'ēn, mə-thĭl'ə-mēn')   
A toxic, flammable gas produced naturally by the decomposition of organic matter and also made synthetically. It is used as a solvent and in the manufacture of many products, such as dyes and insecticides. Chemical formula: CH5N.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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