|  | 
Definition of Tryptophane
1. Noun. An amino acid that occurs in proteins; is essential for growth and normal metabolism; a precursor of niacin. 
Definition of Tryptophane
1. [n -S]
|  | 
1. Noun. An amino acid that occurs in proteins; is essential for growth and normal metabolism; a precursor of niacin. 
1. [n -S]