Speciesism

[Gregory]

n. The belief that one species is superior to another (similar to the beliefs of racism- the belief that one race is superior to another)
;Human [intolerance] or discrimination on the basis of species, especially as [manifested] by [cruelty] to or exploitation of animals.

[Sonia]

The assumption of human superiority leading to the exploitation of animals.

[Julian]

the idea that one species (= set of animals with the same characteristics that can breed from each other) , especially human beings, is more important and should have more rights than another: