[caf.feine] n [G Kaffein, fr. Kaffee coffee, fr. F cafe] (ca. 1823): a bitter alkaloid found esp. in coffee, tea, and kola nuts and used medicinally as a stimulant and diuretic
CAFFEINE
Meaning of CAFFEINE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012