meth·​am·​phet·​amine | \ ˌme-tham-ˈfe-tə-ˌmēn How to pronounce methamphetamine (audio) , -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 Most of the drug arrests — 52 — involved marijuana, with 11 of the 52 also including methamphetamine. Jennifer Peebles, ajc, 11 Aug. 2022 During an autopsy, the Hamilton County Coroner’s Office found that the baby had fentanyl, norfentanyl, morphine, and methamphetamine in her system. Brook Endale, The Enquirer, 5 Aug. 2022 That's the value of the liquid methamphetamine, totaling 110 pounds, that was seized at a Texas border crossing last week. Alexandra Meeks, CNN, 1 Aug. 2022 He was convicted and served time for delivering heroin, second degree assault and manufacturing methamphetamine. oregonlive, 29 July 2022 The driver at that time said he was intoxicated on ecstasy and methamphetamine. cleveland, 28 July 2022 According to the report, methamphetamine continues to be the most common illicit drug used by adult arrestees. Angelina Hicks, San Diego Union-Tribune, 24 July 2022 In April, the jury for the latter inquest ruled the death of Arturo Gomez-Calel to have been an accident, due to a combination of being held on the ground and the methamphetamine in his body, the Mercury News reported. Raheem Hosseini, San Francisco Chronicle, 22 July 2022 He was later transferred to a local hospital where staff found traces of methadone and fentanyl in the boy's system, though a later drug test only confirmed methadone and methamphetamine, according to arrest documents. Gloria Rebecca Gomez, The Arizona Republic, 18 July 2022 See More

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.

First Known Use of methamphetamine

1949, in the meaning defined above

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Time Traveler for methamphetamine

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The first known use of methamphetamine was in 1949

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Statistics for methamphetamine

Last Updated

14 Aug 2022

Cite this Entry

“Methamphetamine.” Dictionary, Merriam-Webster, Accessed 15 Aug. 2022.

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More Definitions for methamphetamine


meth·​am·​phet·​amine | \ ˌmeth-am-ˈfet-ə-ˌmēn, ˌmeth-əm-, -mən How to pronounce methamphetamine (audio) \

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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