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  • noun

Words related to antigen

any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)

References in periodicals archive ?
Rare blood is blood that is negative for multiple blood-group antigens or lacks a high-frequency antigen.
When a patient receives a blood transfusion or has been pregnant, she is exposed to foreign blood-group antigens.
Sometimes, patients will form more than one antibody, requiring that units for transfusion be matched for several blood-group antigens
Immunohematology reference laboratories can then identify these antibodies by testing the patient's red cells with rare frozen antisera from patient samples that contain previously identified antibodies to high-frequency blood-group antigens and by testing the patient's serum vs.