Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
The state in which the immune system does not react to the body's own antigens. It is caused by the destruction of lymphocytes that express receptors to autoantigens as they develop. Failure of these mechanisms may result in autoimmune disease.
See also: tolerance
Medical Dictionary, © 2009 Farlex and Partners
immunological tolerancethe failure to respond to a potential antigen.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005