Medical Definition of angiosperm. : any of a class (Angiospermae) of vascular plants (as orchids or roses) that have the seeds in a closed ovary and include the monocotyledons and dicotyledonsâcompare gymnosperm.
Bilirubin (formerly referred to as haematoidin) is the yellow breakdown product of normal heme catabolism, caused by the body's clearance of aged red blood cells which contain hemoglobin. Bilirubin is excreted in bile and urine, and elevated levels may indicate certain diseases.
Bilirubin is a yellow pigment that is in everyoneâs blood and stool. If you notice a yellowing of your skin or the whites of your eyes, this is called jaundice, and it may be caused by high levels of bilirubin. Bilirubin is made in the body when old red blood cells are broken down. The breakdown of old cells is a normal, healthy process. After circulating in your blood, bilirubin then travels to your liver. In the liver, bilirubin is excreted into the bile duct and stored in your gall bladder. Eventually, the bilirubin is released the small intestine as bile to help digest fats and ultimately excreted with your stool.