bilirubin (n.)youdaoicibaDictYouDict[bilirubin 词源字典]
"reddish pigment found in bile," 1871, from German bilirubin (1864), from bili- (see bile) + Latin ruber "red" (see red (1)) + -ine (2).[bilirubin etymology, bilirubin origin, 英语词源]