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n. caffeine when present in tea

n. See caffeine. Called also theina.

n. A bitter crystallizable volatile principle (C8H10N4O2) found in tea, coffee, and some other plants, tea yielding from 2 to 4 per cent.

"The active principle of tea is called theine; that of coffee, caffeine, and of cocoa, theobromine."

theina    caffeine   

theophylline    theobromine    strychnia    poach    salicin    berberine    ingin    'fikiran'    sebagai    lidocaine