meth amphetamine

methamphetamine

[meth-am-fet-uh-meen, -min]
noun Pharmacology.
a central nervous system stimulant, C 1 0 H 1 5 N, used clinically in the treatment of narcolepsy, hyperkinesia, and for blood pressure maintenance in hypotensive states: also widely used as an illicit drug.

Origin:
1945–50; meth- + amphetamine

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Collins
World English Dictionary
methamphetamine (ˌmɛθæmˈfɛtəmɪn)
 
n
a variety of amphetamine used for its stimulant action
 
[C20: from meth- + amphetamine]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

methamphetamine
1949, from meth(yl) + amphetamine (q.v.); so called because it was a methyl derivative of amphetamine.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
methamphetamine   (měth'ām-fět'ə-mēn', -mĭn)  Pronunciation Key 
An amine derivative of amphetamine, C10H15N, used in the form of its crystalline hydrochloride both as a central nervous system stimulant in the medical treatment of obesity and attention deficit hyperactivity disorder and illicitly as a recreational drug.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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