0 an orange-yellow substance produced by the liver (= a large organ in the body that cleans the blood) when it breaks down haemoglobin (= a substance in red blood cells):
Jaundice is a yellowing of the skin, whites of eyes and mucous membranes that results from a build-up in the blood of bilirubin.
Hepatitis and other disorders reduce the liver's ability to process bilirubin.
Pigment gallstones are dark brown or black stones formed mainly out of excessive bilirubin in the bile.
She showed mildly elevated serum bilirubin concentrations.
