Definition of tryptophan

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  • tryptophan is a valid Scrabble US word with a point value of 20
  • tryptophan is a valid Scrabble UK word with a point value of 20
  • tryptophan is a valid Words with friends word with a point value of 21

Definition of tryptophan

  • an amino acid that occurs in proteins; is essential for growth and normal metabolism; a precursor of niacin (noun)

    Synonyms

    1. tryptophane

See definition of tryptophan in Merriam Webster