The inducing antigens that react with an antibody are called heterologous antigens.

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Heterologous antigens refer to antigens that are different from the host's own antigens (also known as self-antigens) and can elicit an immune response. They may or may not react with antibodies depending on various factors, including the specificity and sensitivity of the antibody and the presence of other interfering substances. Therefore, the term "inducing antigens" is not a precise or widely used term in immunology.

The Inducing Antigens That React with an Antibody Are Called