methamphetamine

noun

meth·​am·​phet·​amine ˌme-tham-ˈfe-tə-ˌmēn How to pronounce methamphetamine (audio)
-thəm-,
-mən
: 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 hyperactivity 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In North Carolina, police seized 148 pounds of methamphetamine that was hidden in pallets of stone landscape pavers. Krystal Nurse, USA Today, 5 Apr. 2025 On Sept 10, she was arrested in Marinette County and charged with multiple felony counts, including child neglect, methamphetamine possession, and maintaining a site for drug trafficking. Ryan Coleman, EW.com, 1 Apr. 2025 Rodarte, 30, took part in a widespread operation across Northern California aiming to crack down on transnational organization suspected of dealing methamphetamine and fentanyl. Ishani Desai, Sacbee.com, 28 Mar. 2025 The coroner’s office attributed the cause of death to gunshot wounds; toxicology reports found amphetamines, methamphetamines and olanzapine in Escalera’s system, according to Tuesday’s release. Aurora Beacon-News, Chicago Tribune, 20 Mar. 2025 See All Example Sentences for methamphetamine

Word History

First Known Use

1949, in the meaning defined above

Time Traveler
The first known use of methamphetamine was in 1949

Browse Nearby Words

Cite this Entry

“Methamphetamine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/methamphetamine. Accessed 16 Apr. 2025.

Kids Definition

methamphetamine

noun
meth·​am·​phet·​amine ˌmeth-am-ˈfet-ə-ˌmēn How to pronounce methamphetamine (audio)
: a drug derived from amphetamine that is often used illegally as a stimulant of the central nervous system

Medical Definition

methamphetamine

noun
meth·​am·​phet·​amine ˌmeth-am-ˈfet-ə-ˌmēn, ˌmeth-əm-, -mən How to pronounce methamphetamine (audio)
: an amine C10H15N that is used medically in the form of its crystalline hydrochloride C10H15N·HCl especially to treat attention deficit hyperactivity disorder and obesity and that is often abused illicitly as a stimulant

called also meth, methedrine, methylamphetamine, speed

More from Merriam-Webster on methamphetamine

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