AskDefine | Define caffeine

Dictionary Definition

caffeine n : a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects [syn: caffein]

User Contributed Dictionary

English

Etymology

French caféine, from café 'coffee'.

Pronunciation

  • /ˈkæfiːn/ or

Noun

caffeine
  1. An alkaloid, C8H10N4O2, found naturally in tea and coffee plants which acts as a mild stimulant of the central nervous system.

Translations

  • Croatian: kofein
  • Czech: kofein
  • Korean: 카페인
  • Portuguese: cafeína
  • Swedish: koffein

Italian

Noun

caffeine
  1. Plural of caffeina
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