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EnglishEdit

Alternative formsEdit

EtymologyEdit

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

PronunciationEdit

  • IPA(key): /ˈkæfiːn/ or /kæˈfiːn/
  • (file)

NounEdit

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 termsEdit

TranslationsEdit

Further readingEdit

ReferencesEdit

  1. ^ caffeine” in Lexico, Dictionary.com; Oxford University Press.
  2. ^ caffeine” in Douglas Harper, Online Etymology Dictionary, 2001–2019.

ItalianEdit

NounEdit

caffeine f pl

  1. plural of caffeina