Origin and Etymology of ldl
First Known Use: 1962See Words from the same year
Medical Definition of LDL
: a lipoprotein of blood plasma that is composed of a moderate proportion of protein with little triglyceride and a high proportion of cholesterol and that is associated with increased probability of developing atherosclerosis—called also bad cholesterol, beta-lipoprotein, low-density lipoprotein; compare hdl, vldl
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