autoimmunization

[ aw-toh-im-yuh-nuh-zey-shuh n, -i-myoo- ]
/ ˌɔ toʊˌɪm yə nəˈzeɪ ʃən, -ɪˌmyu- /

noun Immunology.

antibody production by an organism in response to and against any of its own tissues, cells, or cell components.
Also called autosensitization.

Origin of autoimmunization

First recorded in 1905–10; auto-1 + immunization