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theobromine

[thee-uh-broh-meen, -min] /ˌθi əˈbroʊ min, -mɪn/
noun, Pharmacology
1.
a white, crystalline, water-insoluble, poisonous powder, C 7 H 8 N 4 O 2 , 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
1835-1845
1835-45; < Neo-Latin Theobrom(a) genus of trees typified by cacao (< Greek theo- theo- + brôma food) + -ine2
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for theobromines

theobromine

/ˌθiːəʊˈbrəʊmiːn; -mɪn/
noun
1.
a white crystalline slightly water-soluble alkaloid that occurs in many plants, such as tea and cacao: formerly used to treat asthma. Formula: C7H8N4O2 See also xanthine (sense 2)
Word Origin
C18: from New Latin theobroma genus of trees, literally: food of the gods, from theo- + Greek brōma food + -ine²
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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theobromines in Medicine

theobromine the·o·bro·mine (thē'ō-brō'mēn')
n.
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.
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theobromines in Science
theobromine
  (thē'ō-brō'mēn')   
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for theobromines

theobromine

diuretic drug and major alkaloidal constituent of cocoa. Theobromine is a xanthine alkaloid, a methylxanthine, as are caffeine and theophylline, but it differs from them in having little stimulatory action upon the central nervous system. The stimulant effect of cocoa results from the caffeine that it contains rather than from the theobromine.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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