low-den·si·ty lipoprotein /ˈloˈdɛn(t)sətɪ-/ 名詞
  低密度脂蛋白
  low-density lipoprotein
       n : a lipoprotein that transports cholesterol in the blood;
           composed of moderate amount of protein and a large amount
           of cholesterol; high levels are thought to be associated
           with increased risk of coronary heart disease and
           atherosclerosis [syn: LDL, beta-lipoprotein]