CAFFEIN

Pronunciation (US): (GB):

Meaning:

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

Synonyms:

caffein; caffeine

Classified under:

Nouns denoting substances

Hypernyms ("caffein" is a kind of...):

alkaloid (natural bases containing nitrogen found in plants)

Holonyms ("caffein" is a substance of...):

coffee; java (a beverage consisting of an infusion of ground coffee beans)

tea (a beverage made by steeping tea leaves in water)

Derivation:

caffeinic (of or containing caffein)