Colouring matters of the bile. They are bilirubin, biliverdin (biliverdine), bilifuscin, biliprasin, choleprasin, bilihumin, and bilicyanin. ... (12 Dec 1998) ... 
Type: Term Definitions: 1. coloring matter in the bile derived from porphyrins by rupture of a methane bridge; bilirubin, biliverdin.