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| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a stew of meat, vegetables, potatoes, etc. |
| high-density lipoprotein | |
| —n | |
| HDL a lipoprotein that is the form in which cholesterol is transported in the bloodstream from the tissues to the liver | |
high-density lipoprotein n.
Abbr. HDL
A complex of lipids and proteins that functions as a transporter of cholesterol in the blood and which, in high concentrations, is associated with a decreased risk of atherosclerosis and coronary heart disease. Also called alpha-lipoprotein.
| high-density lipoprotein
A complex of lipids and proteins in approximately equal amounts that functions as a transporter of cholesterol in the blood. High levels are associated with a decreased risk of atherosclerosis and coronary heart disease. |