methamphetamine
noun
meth·am·phet·amine
ˌme-tham-ˈfe-tə-ˌmēn 
-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
William Finnegancalled also meth, methedrine, speed
compare crystal methExamples of methamphetamine in a Sentence
Recent Examples on the Web
Prosecutors say the three conspired to smuggle 26 pounds of methamphetamine into the Bay Area.
—Nate Gartrell, Mercury News, 5 June 2025
The subsequent search turned up 61 packages of methamphetamine, with a combined weight just over 7,700 pounds.
—Teri Figueroa, San Diego Union-Tribune, 4 June 2025
Last month, federal agents seized 1,730 pounds of methamphetamine, 238 pounds of cocaine, 257 pounds of powdered fentanyl and about 360,000 counterfeit fentanyl pills from the home.
—Jasmine Mendez, Los Angeles Times, 3 June 2025
He was picked up in Vadnais Heights on suspicion of drug possession (methamphetamine) and possessing a gun (he was prohibited after having been convicted of a crime of violence) and later charged with both offenses.
—Nick Ferraro, Twin Cities, 30 May 2025
See All Example Sentences for methamphetamine
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Nate Gartrell, Mercury News, 5 June 2025
The subsequent search turned up 61 packages of methamphetamine, with a combined weight just over 7,700 pounds.
—Teri Figueroa, San Diego Union-Tribune, 4 June 2025
Last month, federal agents seized 1,730 pounds of methamphetamine, 238 pounds of cocaine, 257 pounds of powdered fentanyl and about 360,000 counterfeit fentanyl pills from the home.
—Jasmine Mendez, Los Angeles Times, 3 June 2025
He was picked up in Vadnais Heights on suspicion of drug possession (methamphetamine) and possessing a gun (he was prohibited after having been convicted of a crime of violence) and later charged with both offenses.
—Nick Ferraro, Twin Cities, 30 May 2025
See All Example Sentences for methamphetamine
Cite this Entry
“Methamphetamine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/methamphetamine. Accessed 14 Jun. 2025.
Copy CitationKids Definition
methamphetamine
noun
meth·am·phet·amine
ˌmeth-am-ˈfet-ə-ˌmēn
: 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
: 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
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