speciesism

noun
spe·​cies·​ism | \ˈspē-shēz-ˌi-zəm, -sēz-\

Definition of speciesism 

1 : prejudice or discrimination based on species especially : discrimination against animals

2 : the assumption of human superiority on which speciesism is based

First Known Use of speciesism

1973, in the meaning defined at sense 1

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The first known use of speciesism was in 1973

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