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nounany substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)type of:
Definition that contains antigen
- a the blood group whose red cells carry the A antigen
- o the blood group whose red cells carry neither the A nor B antigens
- b the blood group whose red cells carry the B antigen
- recognize exhibit recognition for (an antigen or a substrate)
- ab the blood group whose red cells carry both the A and B antigens
- affinity (immunology) the attraction between an antigen and an antibody
- rh 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
- antibody any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response
- valence (biology) a relative capacity to unite or react or interact as with antigens or a biological substrate
- determinant the site on the surface of an antigen molecule to which an antibody attaches itself