Sentence Examples

  • Caffeine is the active principle in tea, coffee, kola, mate and guarana; while theobromine, a body closely allied to it, is found in cocoa and chocolate.
  • Caffeine (formerly known as theme) is the alkaloid of tea, and is identical with that of coffee, guarana, mate and kola nut.

How would you define guarana? Add your definition here.

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