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Any of several substances on the surface of red blood cells that induce a strong antigenic response in individuals lacking the substance.
(Biochemistry) an agglutinogen commonly found in human blood: it may cause a haemolytic reaction, esp during pregnancy or following transfusion of blood that does not contain this agglutinogen. Full name: rhesus factor
[C20: named after the rhesus monkey, in which it was first discovered]
any of a group of antigens on the surface of red blood cells, those having inherited such antigens being designated Rh + (Rh positive) and those lacking them, a much smaller group, being designated Rh− (Rh negative) : transfused or fetal Rh + blood may induce a severe reaction in an Rh− individual.
[1940–45; so called because first found in the blood of rhesus monkeys]
An antigen present in red blood cells, used in the classification of human blood. The blood cells of most people contain an Rh factor. For a blood transfusion to be successful, the blood of the donor must match that of the recipient—both must have or must be missing the Rh factor.
Rh factor- Named for the rhesus monkeys used in research to identify blood types.
See also related terms for research.
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|Noun||1.||Rh factor - a blood group antigen possessed by Rh-positive people; if an Rh-negative person receives a blood transfusion from an Rh-positive person it can result in hemolysis and anemia|
antigen - any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)