hypoprothrombinemia
noun
hy·po·pro·throm·bin·emia
Medical Definition of hypoprothrombinemia
: 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