meth·​am·​phet·​amine | \ˌme-tham-ˈfe-tə-ˌmēn, -thəm-, -mən\

Definition of methamphetamine 

: a synthetic or semisynthetic compound C10H15N that stimulates the central nervous system, is used medically in the form of its crystalline hydrochloride C10H15N·HCl especially to treat attention deficit disorder and obesity, and that is often abused illicitly for its stimulant properties methamphetamine is a powerful addictive stimulant whose longtime consumers tend to suffer from paranoia, depression, hallucinations, and violent rages.— William Finnegan

called also meth, methedrine, speed

— compare crystal meth

Examples of methamphetamine in a Sentence

Recent Examples on the Web

She'd previously been convicted of unauthorized use of a vehicle, attempting to elude a police officer, unlawful possession of methamphetamine and possession of a burglary tool. Everton Bailey Jr.,, "2nd escaped inmate caught trying to help man break into his own car, police say," 8 June 2018 Hulsey has warrants with the Milwaukee Police Department for possession with intent to deliver methamphetamine and bail jumping. Erik S. Hanley, Milwaukee Journal Sentinel, "Cudahy man arrested for harboring fugitive with multiple felony warrants; fugitive also arrested," 31 May 2018 Hamilton Police have identified the drugs found in an assistant principal's office as methamphetamine and have charged him with possession of drugs, police said Friday. Sarah Brookbank,, "Police: Assistant principal had methamphetamine at elementary school," 11 May 2018 But some states are seeing sharp rises in employees and applicants using other addictive and potentially deadly drugs like methamphetamine and cocaine, including states in the Midwest, Northeast, and the South. Sy Mukherjee, Fortune, "Far More U.S. Workers Had Positive Drug Tests for Cocaine, Meth, and Marijuana in 2017 Than the Year Before," 9 May 2018 According to authorities, Green died of an overdose of methamphetamine and chloroethane on March 6. John D. Harden, Houston Chronicle, "More than 3,800 cast votes early to fill vacancy left by late councilman," 1 May 2018 Police found a glass pipe containing methamphetamine residue inside the truck driven by Boek before the shooting. Travis Fedschun, Fox News, "Uber driver fatally shoots man in 'classic stand your ground case,' Florida sheriff says," 2 Oct. 2018 Neither study included any significant number of opioid or methamphetamine positives, two of the drugs that most concern us today. Mark A.r. Kleiman, Vox, "Is it time to do away with job applicant drug testing?," 27 July 2018 Technically a stateless refugee who had fled violence and methamphetamine trafficking in nearby Myanmar, Sam-on was proficient in four languages, including English. David Grossman, Popular Mechanics, "Rescued Thai Soccer Team Recounts the Ordeal in the Cave," 18 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'methamphetamine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of methamphetamine

1949, in the meaning defined above

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4 Dec 2018

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The first known use of methamphetamine was in 1949

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meth·​am·​phet·​amine | \ˌmeth-am-ˈfet-ə-ˌmēn, ˌmeth-əm-, -mən \

Medical Definition of methamphetamine 

: an amine C10H15N that is used medically in the form of its crystalline hydrochloride C10H15N·HCl especially to treat attention deficit disorder and obesity and that is often abused illicitly as a stimulant

called also meth, methedrine, methylamphetamine, speed

More from Merriam-Webster on methamphetamine Encyclopedia article about methamphetamine

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