Definition of ephedrine in English:

ephedrine

Syllabification: e·phed·rine
Pronunciation: /əˈfedrin, ˈefəˌdrēn
 
/

noun

Medicine
A crystalline alkaloid drug obtained from some ephedras. It causes constriction of the blood vessels and widening of the bronchial passages and is used to relieve asthma and hay fever.
More example sentences
  • He studied the tissue distribution and metabolism of caffeine, amphetamines, ephedrine, and narcotic drugs.
  • A 43 year old general practitioner had had juvenile asthma requiring regular ephedrine.
  • If the medicines aspirin, ephedrine, and morphine were once botanicals, how did they get to be tested and marketed as drugs?

Origin

late 19th century: from ephedra + -ine4.

Definition of ephedrine in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day rebuff
Pronunciation: rɪˈbʌf
verb
reject (someone or something) in an abrupt manner…