tryptophann. 色胺酸β-吲哚基丙胺酸學術名詞色胺酸：生命科學、心理學、化學、動物學、內分泌學、獸醫學色氨酸：紡織科技英文釋義an amino acid that occurs in proteins; is essential for growth and normal metabolism; a precursor of niacin