Bilirubin
Part of speech: noun
Definition: A bile pigment that is product of the breakdown of the heme portion of hemoglobin. This happens within macrophages as they digest red blood cells. Extremely high levels of bilirubin cause jaundice.
Bile
Part of speech: noun
Definition: A bitter brownish-yellow or greenish-yellow secretion produced by the liver, stored in the gall bladder, and discharged into the duodenum where it aids the process of digestion.bitterness of temper; ill humour; irascibility.Two of the four humours, black bile or yellow bile, in ancient and medieval physiology.