- A nutritional condition produced by a deficiency of vitamin k in the diet, characterized by an increased tendency to hemorrhage (hemorrhagic disorders). Such bleeding episodes may be particularly severe in newborn infants. (from cecil textbook of medicine, 19th ed, p1182)
- Condition due to a deficiency of vitamin k.
- Deficiency of vitamin k. It may lead to bleeding, manifested with ecchymoses, petechiae, and hematomas. In infants it may cause hemorrhagic disease of newborn with intracranial and retroperitoneal bleeding.