lipoprotein /ˌlɪpəʊˈprəʊtiːn, ˌlaɪ-/

• 1. 

  N any of a group of proteins to which a lipid molecule is attached, important in the transport of lipids in the bloodstream. They exist in two main forms: high-density lipoproteins and low-density lipoproteins 脂蛋白 → see also low-density lipoprotein