caffeine

English

Alternative forms

Etymology

From French caféine[1], from café (“coffee”), or German Caffein, Kaffein[2] (cp. Coffein, Koffein), from Kaffee (“coffee”) (cp. Kaffe, Koffee, Koffe), or Italian caffè (“coffee”) +‎ -ine

Pronunciation
  • IPA(key): /ˈkæfiːn/ or /kæˈfiːn/
  • Audio (US)(file)

Noun

caffeine (usually uncountable, plural caffeines)

  1. An alkaloid, C8H10N4O2, found naturally in tea and coffee plants which acts as a mild stimulant on the central nervous system. [from 1830]
    Coordinate terms: guaranine, mateine, theine

Derived terms

Translations

Further reading

References
  1. “caffeine” (US) / “caffeine” (UK) in Oxford Dictionaries, Oxford University Press.
  2. “caffeine” in Douglas Harper, Online Etymology Dictionary, 2001–2019.

Italian

Noun

caffeine f pl

  1. plural of caffeina
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