Dictionary.com

ephedrine

[ ih-fed-rin, ef-i-dreen, -drin ]
/ ɪˈfɛd rɪn, ˈɛf ɪˌdrin, -drɪn /
Save This Word!

noun Pharmacology.
a white, crystalline alkaloid, C10H15N, obtained from a species of Ephedra or synthesized: used in medicine chiefly for the treatment of asthma, hay fever, and colds.

COMPARE MEANINGS

Click for a side-by-side comparison of meanings. Use the word comparison feature to learn the differences between similar and commonly confused words.
QUIZ
GOOSES. GEESES. I WANT THIS QUIZ ON PLURAL NOUNS!
Test how much you really know about regular and irregular plural nouns with this quiz.
Question 1 of 9
Which of the following nouns has an irregular plural form?

Origin of ephedrine

1885–90; <New Latin Ephedr(a) ephedra + -ine2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use ephedrine in a sentence

  • Combination of ephedrine and homatropine hydrochlorates (100:1).

    Merck's 1899 Manual|Merck &amp; Co.

British Dictionary definitions for ephedrine

ephedrine

ephedrin

/ (ɪˈfɛdrɪn, ˈɛfɪˌdriːn, -drɪn) /

noun
a white crystalline alkaloid obtained from plants of the genus Ephedra: used for the treatment of asthma and hay fever; l-phenyl-2-methylaminopropanol. Formula: C 6 H 5 CH(OH)CH(NHCH 3)CH 3

Word Origin for ephedrine

C19: from New Latin ephedra + -ine ²
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for ephedrine

ephedrine
[ ĭ-fĕdrĭn, ĕfĭ-drēn′ ]

n.
An odorless crystalline or powdered alkaloid isolated from shrubs of the genus Ephedra or made synthetically and used in the treatment of allergies and asthma.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for ephedrine

ephedrine
[ ĭ-fĕdrĭn, ĕfĭ-drēn′ ]

A white, odorless, powdered or crystalline alkaloid isolated from shrubs of the genus Ephedra or made synthetically. It is used in the treatment of allergies and asthma. Chemical formula: C10H15NO.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK