- tolerogen
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tol·ero·gen 'täl-ə-rə-jən n a tolerogenic antigen* * *
tol·ero·gen (tolґər-o-jən) an antigen used to introduce tolerance, particularly a form of an antigen (usually a soluble form) that induces tolerance, as distinguished from an immunogen, another form (usually an insoluble form) that induces immunity.
Medical dictionary. 2011.