caffeine
English
Alternative forms
- caffein
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/, /kæˈfiːn/
Audio (US) (file) - Rhymes: -æfiːn, -iːn
Noun
caffeine (usually uncountable, plural caffeines)
- 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
- apocaffeine
- caffeine-free
- caffeinic
- diethoxyhydroxycaffeine
- hydroxycaffeine
- hypocaffeine
Translations
alkaloid found naturally in tea and coffee plants
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References
- “caffeine”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
- Douglas Harper (2001–2023), “caffeine”, in Online Etymology Dictionary.
Further reading
- caffeine on Wikipedia.Wikipedia
Italian
Noun
caffeine f pl
- plural of caffeina