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
Authorities said the suspects had trafficked fentanyl and methamphetamine from Lawrence, Massachusetts.
—Emma Bussey, FOXNews.com, 9 Sep. 2025
The man was covered in mud and appeared to be under the influence of methamphetamines, according to the arrest warrant affidavit.
—Caroline Zimmerman, Kansas City Star, 9 Sep. 2025
Bucur was transported to the Clackamas County Jail where he was booked on charges of first-degree burglary and the unlawful possession of methamphetamine, authorities said.
—Megan Forrester, ABC News, 8 Sep. 2025
But during his stint at Santa Rita Jail, Addleman was suspected of ordering contraband packages containing methamphetamine, authorities said.
—Nate Gartrell, Mercury News, 5 Sep. 2025
See All Example Sentences for methamphetamine
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Emma Bussey, FOXNews.com, 9 Sep. 2025
The man was covered in mud and appeared to be under the influence of methamphetamines, according to the arrest warrant affidavit.
—Caroline Zimmerman, Kansas City Star, 9 Sep. 2025
Bucur was transported to the Clackamas County Jail where he was booked on charges of first-degree burglary and the unlawful possession of methamphetamine, authorities said.
—Megan Forrester, ABC News, 8 Sep. 2025
But during his stint at Santa Rita Jail, Addleman was suspected of ordering contraband packages containing methamphetamine, authorities said.
—Nate Gartrell, Mercury News, 5 Sep. 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 17 Sep. 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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