amphetamine

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

Definition of amphetamine

  1. :  a racemic compound C9H13N or one of its derivatives (such as dextroamphetamine or methamphetamine) frequently abused as a stimulant of the central nervous system but used clinically especially as the sulfate or hydrochloride salt to treat hyperactive children and the symptoms of narcolepsy and as a short-term appetite suppressant in dieting

Recent Examples of amphetamine from the Web

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.

Origin and Etymology of amphetamine

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


AMPHETAMINE Defined for English Language Learners

amphetamine

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noun

Definition of amphetamine for English Language Learners

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


AMPHETAMINE Defined for Kids

amphetamine

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

Definition of amphetamine for Students

  1. :  a drug that makes the nervous system more active


Medical Dictionary

amphetamine

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

Medical Definition of amphetamine

  1. :  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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