CAFFEIN

Pronunciation (US):

(GB):

 Dictionary entry overview: What does caffein mean? 

• CAFFEIN (noun)
  The noun CAFFEIN has 1 sense:

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

  Familiarity information: CAFFEIN used as a noun is very rare.

 Dictionary entry details 

• CAFFEIN (noun)

Sense 1

Meaning:

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

Classified under:

Nouns denoting substances

Synonyms:

caffein; caffeine

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)