a particular kind or species of matter with uniform properties

of or relating to antigens

the site on the surface of an antigen molecule to which an antibody attaches itself

the branch of medical science that studies the body's immune system

of or relating to antigens

any substance or organism that provokes an immune response (produces immunity) when introduced into the body

any substance that acts as an antigen to cause agglutinin production

any of several antigens that occur naturally in the fetus and sometimes in adults with cancer

a bacterial toxin that has been weakened until it is no longer toxic but is strong enough to induce the formation of antibodies and immunity to the specific disease caused by the toxin

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

the site on the surface of an antigen molecule to which an antibody attaches itself

the branch of medical science that studies the body's immune system