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 - urine. Bilirubin is a yellowish pigment found in bile, a fluid produced by the liver. This article is about a lab test to measure the amount of bilirubin in the urine. Large amounts of bilirubin in the body can lead to jaundice. Bilirubin may also be measured with a blood test. This test can be done on any urine sample. For an infant, thoroughly wash the area where urine exits the body. 1  Open a urine collection bag (a plastic bag with an adhesive paper on one end).  For males, place the entire penis in the bag and attach the adhesive to the skin.