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HOW TO PRONOUNCE

caffeine

/kæˈfin/

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American Pronunciation Guide · 1:05
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What does caffeine mean?

noun

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

Definitions regrouped for readability · CC BY-SA 4.0

IPA pronunciation

/kæˈfin/

CMU Pronouncing Dictionary

Pronunciation varies by speaker and region. About these dictionary pronunciations.

In the pages of books

See this word in context.

Both contain stimulating alkaloids, theobromine and caffeine, and fat is a notable constituent of cocoa.
Douglas, Sir MawsonThe Home of the Blizzard Being the Story of the Australasian Antarctic Expedition, 1911-1914Project Gutenberg ebook #6137
The caffeine, alcohol or whatever the stimulating poison may have been has precipitated the fatigue products from the blood and deposited them in the tissues and organs of the body.
Henry LindlahrNature Cure: Philosophy & Practice Based on the Unity of Disease & CureProject Gutenberg ebook #4273