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papaverine

[puh-pav-uh-reen, -er-in, puh-pey-vuh-reen, -ver-in] /pəˈpæv əˌrin, -ər ɪn, pəˈpeɪ vəˌrin, -vər ɪn/
noun, Pharmacology
1.
a white, crystalline, nonnarcotic, alkaloidal powder, C 2 0 H 2 1 NO 4 , 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
1855-1860
1855-60; < Latin papāver poppy + -ine2
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for papaverine

papaverine

/pəˈpeɪvəˌriːn; -rɪn/
noun
1.
a white crystalline almost insoluble alkaloid found in opium and used as an antispasmodic to treat coronary spasms and certain types of colic. Formula: C20H21NO4
Word Origin
C19: from Latin papāverpoppy
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
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papaverine in Medicine

papaverine pa·pav·er·ine (pə-pāv'ə-rēn', -ər-ĭn)
n.
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.
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