hypoprothrombinemia

noun

hy·​po·​pro·​throm·​bin·​emia

variants or chiefly British hypoprothrombinaemia

-prō-ˌthräm-bə-ˈnē-mē-ə 

: deficiency of prothrombin in the blood usually due to vitamin K deficiency or liver disease (especially obstructive jaundice) and resulting in delayed clotting of blood or spontaneous bleeding (as from the nose or into the skin)

called also prothrombinopenia

hypoprothrombinemic adjective

or chiefly British hypoprothrombinaemic

-ˈnē-mik