stercobilinogen

/ˌstɜːrkoʊˈbaɪlɪnədʒən/
noun
  1. A colorless compound produced in the intestines from the breakdown of bilirubin, which is later oxidized to stercobilin and gives feces its brown color.
    • The brown color of stool comes from stercobilin, which is made from stercobilinogen.
    • Doctors can measure stercobilinogen levels to check liver function.
    • Stercobilinogen is formed when bacteria in the gut break down bile pigments.