Caffeine - definition, pronunciation, transcription

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Amer.  |ˈkæfiːn|  American pronunciation of the word caffeine
Brit.  |ˈkæfiːn|  British pronunciation of the word caffeine

noun

- a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects

Extra examples

Her doctor told her to avoid caffeine.

Avoid caffeine (=drinks with caffeine) before bedtime.

...a soft drink with only an infinitesimal amount of caffeine...

She needed a jolt of caffeine to start her day.

...the novel's plot is kinetic and fast-paced, and its effect on the reader is much like that of a surfeit of caffeine...

...even highly decaffeinated coffee contains a tiny residuum of caffeine...

...the only way he can stay awake at his night job is by constantly swigging drinks containing caffeine...

Caffeine can cause palpitations and headaches.

Caffeine constricts the blood vessels in your body.

I need my fix of caffeine in the morning or I can't think.

I discovered I was hypersensitive to caffeine.

No more caffeine for me, I'm pretty wired.

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