self-tolerance

noun

self-tol·​er·​ance ˌself-ˈtä-lə-rən(t)s 

-ˈtäl-rən(t)s

: the physiological state that exists in an organism when its immune system has proceeded far enough in the process of self-recognition to lose the capacity to attack and destroy its own bodily constituents

Word History

First Known Use

1962, in the meaning defined above

Medical Definition

self-tolerance

noun

self-tol·​er·​ance ˈself-ˈtäl(-ə)-rən(t)s 

: the physiological state that exists in a developing organism when its immune system has proceeded far enough in the process of self-recognition to lose the capacity to attack and destroy its own bodily constituents

called also horror autotoxicus