[meth-uh-luh-meen, -uhl-am-in]
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.

1840–50; methyl- + amine Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
methylamine (miːˈθaɪləˌmiːn)
a colourless flammable water-soluble gas, used in the manufacture of herbicides, dyes, and drugs. Formula: CH3NH2

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
methylamine   (měth'ə-lə-mēn', -lām'ēn, mə-thĭl'ə-mēn')  Pronunciation Key 
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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Example sentences
Methylamine is an exception, because it is a gas with a wide flammability range.
Agents seized several items, including a gas cylinder containing methylamine gas, a precursor to methamphetamine.
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