low-density lipoprotein: 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
lipoprotein: a conjugated protein having a lipid component; the principal means for transporting lipids in the blood
pilomotor reflex: reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation