Source : WordNet®

LDL
     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: {low-density lipoprotein}, {beta-lipoprotein}]

Source : Free On-Line Dictionary of Computing

LDL
     
        ["LDL: A Logic-Based Data-Language", S. Tsur et al, Proc VLDB
        1986, Kyoto Japan, Aug 1986, pp.33-41].