- a white, crystalline, water-insoluble, poisonous powder, C7H8N4O2, an isomer of theophylline and lower homologue of caffeine, occurring in tea and obtained from the cacao bean: used chiefly as a diuretic, myocardial stimulant, and vasodilator.
Origin of theobromine
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Examples from the Web for theobromine
Its active principle is theobromine, an alkaloid greatly resembling caffeine, the active principle of coffee and tea.
Caffeine and theobromine have also quite different relations.
Caffeine, it will be remembered, is the methyl ester of theobromine, and can be prepared from it.
The artificial preparation of theobromine and caffeine from xanthine, and guanine also show clearly their relations.
Both contain stimulating alkaloids, theobromine and caffeine, and fat is a notable constituent of cocoa.The Home of the Blizzard
- a white crystalline slightly water-soluble alkaloid that occurs in many plants, such as tea and cacao: formerly used to treat asthma. Formula: C 7 H 8 N 4 O 2See also xanthine (def. 2)
C18: from New Latin theobroma genus of trees, literally: food of the gods, from theo- + Greek brōma food + -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
- A bitter, colorless alkaloid found in chocolate products and used as a diuretic, vasodilator, and myocardial stimulant.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A bitter, colorless alkaloid that occurs in the cacao bean, cola nuts, and tea. It is found in chocolate products and used in medicine as a diuretic, vasodilator, and myocardial stimulant. Theobromine is a xanthine and similar in structure to caffeine and theophylline. Chemical formula: C7H8N4O2.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.