[ puh-pav-uh-reen, -er-in, puh-pey-vuh-reen, -ver-in ]
/ pəˈpæv əˌrin, -ər ɪn, pəˈpeɪ vəˌrin, -vər ɪn /

noun Pharmacology.

a white, crystalline, nonnarcotic, alkaloidal powder, C20H21NO4, obtained from opium, but not a morphine derivative and not habit-forming or addicting, used in the treatment of spasms of involuntary muscle, especially of the stomach, bronchi, and arteries.

Origin of papaverine

1855–60; < Latin papāver poppy + -ine2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for papaverine

British Dictionary definitions for papaverine


/ (pəˈpeɪvəˌriːn, -rɪn) /


a white crystalline almost insoluble alkaloid found in opium and used as an antispasmodic to treat coronary spasms and certain types of colic. Formula: C 20 H 21 NO 4

Word Origin for papaverine

C19: from Latin papāver poppy
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

Medicine definitions for papaverine


[ pə-păvə-rēn′, -ər-ĭn ]


A nonaddictive opium derivative used medicinally to relieve spasms of smooth muscle.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.