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The Adobe Flash Player is required in order to view this content. You can get it here: caffeineOne entry found. Main Entry: caf·feine Pronunciation: \ka-ˈfēn, ˈka-ˌ\ Function: noun Etymology: German Kaffein, from Kaffee coffee, from French café Date: circa 1823 : a bitter alkaloid C8H10N4O2 found especially in coffee, tea, cacao, and kola nuts and used medicinally as a stimulant and diuretic 
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