Definition of caffein

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  • caffein is a valid Scrabble US word with a point value of 15
  • caffein is a valid Scrabble UK word with a point value of 15
  • caffein is a valid Words with friends word with a point value of 17

Definition of caffein

  • a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects (noun)

    Synonyms

    1. caffeine

See definition of caffein in Merriam Webster