high-density lipoprotein HDL alpha-lipoprotein
high-density_lipoprotein%1:27:00:: hdl%1:27:00:: alpha-lipoprotein%1:27:00::
a lipoprotein that transports cholesterol in the blood; composed of a high proportion of protein and relatively little cholesterol; high levels are thought to be associated with decreased risk of coronary heart disease and atherosclerosis