| Noun | 1. | congenital afibrinogenemia - a rare congenital disorder of blood coagulation in which no fibrinogen is found in the blood plasma congenital disease, genetic abnormality, genetic defect, genetic disease, genetic disorder, hereditary condition, hereditary disease, inherited disease, inherited disorder - a disease or disorder that is inherited genetically afibrinogenemia - the absence of fibrinogen in the plasma leading to prolonged bleeding |