[ thee-uh-broh-meen, -min ]
/ ˌθi əˈbroʊ min, -mɪn /

noun Pharmacology.

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.

Nearby words

  1. thenceforth,
  2. thenceforward,
  3. theo-,
  4. theobald,
  5. theobald, lewis,
  6. theocentric,
  7. theocentricity,
  8. theoclymenus,
  9. theocon,
  10. theocracy

Origin of theobromine

1835–45; < New Latin Theobrom(a) genus of trees typified by cacao (< Greek theo- theo- + brôma food) + -ine2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for theobromine

British Dictionary definitions for theobromine


/ (ˌθiːəʊˈbrəʊmiːn, -mɪn) /


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)

Word Origin for theobromine

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

Medicine definitions for theobromine


[ thē′ō-brōmēn′ ]


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.

Science definitions for theobromine


[ thē′ō-brōmēn′ ]

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.