- Immunology. any substance that can stimulate the production of and combine specifically with them.
- Pharmacology. any commercial substance that, when injected or absorbed into animal tissues, stimulates the production of .
- antigens of a particular type collectively.
- a substance that stimulates the production of antibodies
“substance that causes production of an antibody,” 1908, from German Antigen, from French antigène (1899), from anti- (see ) + Greek -gen (see ).
- Any of various substances, including toxins, bacteria, and the cells of transplanted organs, that when introduced into the body stimulate the production of antibodies.allergen immunogen
- A substance that stimulates the production of an antibody when introduced into the body. Antigens include toxins, bacteria, viruses, and other foreign substances. Compare antibody. See Note at blood type.