A crystalline or amorphous pigment, free from iron, formed from hematin in old blood stains, and in old hemorrhages in the body. It resembles bilirubin. When present in the corpora lutea it is called hæmolutein.
A crystalline substance often within extravasated blood, resembling bilirubin closely, if not identical with it. Additionally spelled hematoidine, hæmatoidine.
an orange-yellow pigment in bile that types as a product of hemoglobin; extra amounts in the blood create the yellow look seen in jaundice