[troh-peen, -pin]

noun Chemistry.

a white, crystalline, hygroscopic, water-soluble, poisonous alkaloid, C8H15NO, obtained chiefly by the hydrolysis of atropine or hyoscyamine.

Origin of tropine

First recorded in 1880–85; aphetic variant of atropine Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for tropine

Historical Examples of tropine

British Dictionary definitions for tropine



a white crystalline poisonous hygroscopic alkaloid obtained by heating atropine or hyoscyamine with barium hydroxide. Formula: C 8 H 15 NO

Word Origin for tropine

C19: shortened from atropine
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

tropine in Medicine


[trōpēn′, -pĭn]


A white, crystalline, poisonous alkaloid obtained chiefly by hydrolysis of atropine.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.