English Reference

Word

amphetamine

Phoneticsam·phet·a·mine, stress on the second syllable

US/æmˈfɛtəˌmin/

UK/æmfˈɛtɐmˌiːn/

Countable & uncountable

Definition

n. a powerful drug that makes you feel more awake and energetic. It is sometimes used to treat medical conditions like ADHD, but it can be very dangerous if you use it without a doctor's help.

n. a central nervous system stimulant used medically to treat attention deficit hyperactivity disorder and narcolepsy. It is also a common recreational drug with a high potential for abuse and physical dependence.

Examples

“The doctor prescribed amphetamine to help him stay focused.”

“Amphetamine is a controlled substance in most countries because of its high potential for addiction and its use in illicit drug manufacturing.”

“While amphetamine can significantly improve cognitive performance and alertness in clinical settings, its long-term use often leads to severe psychological and physiological consequences, including paranoia and cardiovascular strain.”

Examples

simple

“The doctor prescribed amphetamine to help him stay focused.”

contextual

“Amphetamine is a controlled substance in most countries because of its high potential for addiction and its use in illicit drug manufacturing.”

complex

“While amphetamine can significantly improve cognitive performance and alertness in clinical settings, its long-term use often leads to severe psychological and physiological consequences, including paranoia and cardiovascular strain.”

Real-World Examples

“A short précis – a cross-country journey undertaken by a UCLA drop-out armed only with a bag of amphetamines – makes the book sound like an Easy Rider tribute.”
The Guardian 1 Oct 2026
“Cocaine was associated with nearly double the risk of stroke, amphetamines with more than double the risk, and cannabis with a 37% increase.”
ScienceDaily 23 Aug 2026

Etymology

Shortened form of a(lpha-)m(ethyl)ph(en)eth(yl)amine.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

NOUN

amphetamine(C1)

Domain

Medicine

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
Frequency
Occasional
Level
C1 · Advanced
Updated

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English Reference