hyperbetalipoproteinemia

noun

hy·​per·​be·​ta·​li·​po·​pro·​tein·​emia -bāt-ə-ˌlī-pō-ˌprō-ˌtēn-ˈē-mē-ə, -ˌlip-ō-, -ˌprō-tē-ən- 

variants or chiefly British hyperbetalipoproteinaemia

-bē-tə-ˌlip-ō- 

: the presence of excess LDLs in the blood