biliverdin
/ˈbɪlɪˌvɜːrdɪn/
noun
- A green pigment that is formed when hemoglobin breaks down; it is a precursor to bilirubin and gives bile its greenish color.
- Biliverdin is what makes the green color in a healing bruise.
- Some birds have green eggshells because of biliverdin.
- The liver converts biliverdin into bilirubin.