అర్థం : A blood group antigen possessed by Rh-positive people. If an Rh-negative person receives a blood transfusion from an Rh-positive person it can result in hemolysis and anemia.

అర్థం : A white hard metallic element that is one of the platinum group and is found in platinum ores. Used in alloys with platinum.

అర్థం : Any of several hormones produced in the hypothalamus and carried by a vein to the anterior pituitary gland where they stimulate the release of anterior pituitary hormones. Each of these hormones causes the anterior pituitary to secrete a specific hormone.