词源 |
tryptophan n.also tryptophane, complex amino acid, 1890, coined in German (1876) from trypto-, taken as a combining form of tryptic "by trypsin" (see trypsin) + Greek phainein "bring to light, cause to appear, show" (from PIE root *bha- (1) "to shine"). updated on October 18, 2017 |