self-recognition

noun
self-rec·​og·​ni·​tion | \ˌself-ˌre-kig-ˈni-shən, -kəg-\

Definition of self-recognition 

1 : recognition of one's own self

2 : the process by which the immune system of an organism distinguishes between the body's own chemicals, cells, and tissues and those of foreign organisms and agents

First Known Use of self-recognition

1777, in the meaning defined at sense 1

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The first known use of self-recognition was in 1777

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self-recognition

noun
self-rec·​og·​ni·​tion | \-ˌrek-əg-ˈnish-ən \

Medical Definition of self-recognition 

: the process by which the immune system of an organism distinguishes between the body's own chemicals, cells, and tissues and those of foreign organisms or agents — compare self-tolerance

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