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  • Word comparison: theobromine vs. caffeine

theobromine vs. caffeine

theobromine

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.

caffeine

noun

  1. Chemistry, Pharmacology. a white, crystalline, bitter alkaloid, C 8 H 10 N 4 O 2 , usually derived from coffee or tea: used in medicine chiefly as a nervous system stimulant.
  2. Informal. a drink, usually coffee or tea, containing this stimulant:

    We sipped our caffeine on the balcony with its views of sea stacks, rocky coves, and the ever-changing ocean.