- tryptophan (n.)
[tryptophan 词源字典]
- also tryptophane, complex amino acid, 1890, coined in German (1876) from trypto-, taken as a comb. form of tryptic "by trypsin" (see trypsin) + Greek phainein "to appear" (see phantasm).[tryptophan etymology, tryptophan origin, 英语词源]