High density lipoprotein, a lipoprotein that transports cholesterol in the blood; high levels are thought to be associated with decreased risk of coronary heart disease and atherosclerosis; sometimes called good cholesterol. Contrasted with LDL.
Also known as "good" cholesterol, HDL's are large, dense, protein-fat particles that circulate in the blood picking up already used and unused cholesterol and taking them back to the liver as part of a recycling process. Higher levels of HDL's are associated with a lower risk of cardiovascular disease because the cholesterol is cleared more readily from the blood.
Known as the "good cholesterol" that scavenges excess cholesterol from the blood stream and carries it to the liver for excretion.