{i} act of transfusing; (Medicine) direct introduction of a substance into the circulatory system by intravenous injection (i.e. medication, blood, etc.)
The use of blood given by one person to another when a patient has suffered severe blood loss
The act or operation of transferring the blood of one man or animal into the vascular system of another; also, the introduction of any fluid into the blood vessels, or into a cavity of the body from which it can readily be adsorbed into the vessels; intrafusion; as, the peritoneal transfusion of milk
reaction of the body to a transfusion of blood that is not compatible with its own blood; an adverse reaction can range from fever and hives to renal failure and shock and death
A blood transfusion is a process in which blood is injected into the body of a person who is badly injured or ill. = transfusion. the process of putting blood into someone's body as a medical treatment. Transfer of blood taken from one person into the circulation of another to restore blood volume, increase hemoglobin levels, or combat shock. Once the blood-group antigens and antibodies (see ABO blood-group system, Rh blood-group system) were discovered, blood typing of donors and recipients rendered transfusion safe. In exchange transfusion, all or most of the blood is removed and replaced with another's blood. Undesirable reactions to transfusion are not uncommon