high-density lipoprotein

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun a class of lipoprotein that transports cholesterol to the liver from other tissue; high levels may decrease the risk of coronary heart disease

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun 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