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Definition of Tryptophan

1. Noun. An amino acid that occurs in proteins; is essential for growth and normal metabolism; a precursor of niacin.

Definition of Tryptophan

1. Noun. (amino acid) An essential amino acid having an indole side chain; it is present in many foods, especially chocolate, oats, bananas and milk; it is essential for normal growth and development and is the precursor of serotonin and niacin. ¹

¹ Source: wiktionary.com

Definition of Tryptophan

1. [n -S]

Medical Definition of Tryptophan

1. One of the 20 amino acids found in proteins. Essential dietary component in humans. Precursor of nicotinamide. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Tryptophan

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