1. (Professions) a. a young foreigner, usually a girl, who undertakes housework in exchange for board and lodging, esp in order to learn the language. b. (as modifier): an au pair girl. 2. a young person who lives temporarily with a family abroad in exchange for a reciprocal arrangement with his or her own family.
Atherosclerotic Disease Heredity Mapped. Posted on June 17, 2013, 6 a.m. in Cardio-Vascular Genetics in Disease. People with a parent who has early atherosclerosis of the aorta have a significantly increased risk of developing the disease.
Atherosclerosis is a type of arteriosclerosis that affects only the inner lining of an artery. It is characterized by plaque deposits that block the flow of blood. Plaque is made of fatty substances, cholesterol, waste products from the cells, calcium, and fibrin, a stringy material that helps clot blood.