low-density
low-den si ty ▶adjective having a low concentration.
low-density lipoprotein
low-den si ty lip o pro tein (abbr.: LDL ) ▶noun the form of lipoprotein in which cholesterol is transported in the blood.
low-density lipo |pro ¦tein ▶noun [ mass noun ] the form of lipoprotein in which cholesterol is transported in the blood.