The American Heritage® Dictionary of the English Language, 4th Edition
n. Any of several hereditary blood-coagulation disorders in which the blood fails to clot normally because of a deficiency or abnormality of one of the clotting factors. Hemophilia, a recessive trait associated with the X-chromosome, is manifested almost exclusively in males.
the GNU version of the Collaborative International Dictionary of English
n. A condition characterized by a tendency to profuse and uncontrollable hemorrhage from the slightest wounds; it is caused by an absence or abnormality of a clotting factor in the blood, and is a recessive genetic disease linked to the X-chromosome, and therefore usually occurs only in males; there are several specific forms. It may be treated by administering purified clotting factor. It was formerly termed Hematophilia.
The Century Dictionary and Cyclopedia
n. In pathology, a congenital morbid condition characterized by a tendency to bleed immoderately from any insignificant wound, or even spontaneously. Also called hematophilia, hemorrhaphilia, and hemorrhagic diathesis.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. congenital tendency to uncontrolled bleeding; usually affects males and is transmitted from mother to son
Word Usage
"The division includes inpatient and outpatient services, the Apheresis program, the Transfusion Medicine program and clinical research programs in hemophilia, sickle cell disease, thalassemia and bone marrow failure."