amphetamine

noun
am·phet·amine | \am-ˈfe-tə-ˌmēn, -mən\

Definition of amphetamine 

: a racemic compound C9H13N or one of its derivatives (such as dextroamphetamine or methamphetamine) that is a stimulant of the central nervous system, is often abused illicitly, and is used clinically especially in the form of its sulfate C9H13N·H2SO4 to treat attention deficit disorder and narcolepsy and formerly as a short-term appetite suppressant

Examples of amphetamine in a Sentence

Recent Examples on the Web

In January, Tweedy attributed positive tests for amphetamines and methamphetamine to prescription medicine used to treat bronchitis and urinary tract infections. Stephen Hudak, OrlandoSentinel.com, "Father whose son died in hit-and-run softened his harsh opinion of driver found dead," 18 June 2018 He was found to have been carrying a metal hook, and his blood later tested positive for both amphetamine and methamphetamine. Maura Dolan, latimes.com, "Appeals court reinstates suit against Newport Beach for police killing of mentally unstable man," 11 June 2018 The researchers in the new study looked at exposure to four common medications used to treat ADHD: methylphenidate (e.g. Ritalin), amphetamine (e.g. Adderall), atomoxetine and modafinil. Mark Lieber, CNN, "Unnecessary and accidental use of ADHD drugs increases over 60%, study suggests," 21 May 2018 Estridge was arrested on four charges including distribution of heroin and distribution of amphetamine. Ruth Bruno, courant.com, "Wallingford Man Charged For Drug Trafficking," 14 June 2018 The arrest warrant issued Wednesday alleges Couch tested positive for amphetamine or methamphetamine. Crimesider Staff, CBS News, "Mom in "affluenza" case in Texas jail after positive drug test," 8 June 2018 In all, Lincoln Hills leaders took two and a half months to turn over to law enforcement the pipe, which tested positive for amphetamine. Patrick Marley, Milwaukee Journal Sentinel, "Officials did little to determine whether drug pipe found at Wisconsin teen prison belonged to a worker," 22 Feb. 2018 Padres minor league pitcher Alex Cunningham has received a 50-game suspension after testing positive for amphetamine, a stimulant banned under the Minor League Drug Prevention and Treatment Program. Jeff Sanders, sandiegouniontribune.com, "Padres minor leaguer Alex Cunningham suspended," 10 Feb. 2018 Methamphetamine is stimulant drug that is chemically similar to amphetamine, which is used to treat ADHD and narcolepsy, according to the National Institute on Drug Abuse. Alexis Stevens, ajc, "EXCLUSIVE: Majority of those killed by Georgia officers tested positive for drugs," 9 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'amphetamine.' 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 amphetamine

1938, in the meaning defined above

History and Etymology for amphetamine

International Scientific Vocabulary alpha + methyl + phen- + ethyl + amine

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Last Updated

8 Oct 2018

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Time Traveler for amphetamine

The first known use of amphetamine was in 1938

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More Definitions for amphetamine

amphetamine

noun

English Language Learners Definition of amphetamine

: a drug that causes the nervous system to become more active so that a person feels more energy and mental excitement

amphetamine

noun
am·phet·amine | \am-ˈfe-tə-ˌmēn, -mən\

Kids Definition of amphetamine

: a drug that makes the nervous system more active

amphetamine

noun
am·phet·amine | \am-ˈfet-ə-ˌmēn, -mən \

Medical Definition of amphetamine 

: a racemic sympathomimetic amine C9H13N or one of its derivatives (as dextroamphetamine or methamphetamine) that is a stimulant of the central nervous system, is frequently abused illicitly often leading to dependence, and is used clinically especially in the form of its sulfate C9H13N·H2SO4 to treat attention deficit disorder and narcolepsy and formerly as a short-term appetite suppressant — see adderall

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