Ableism or ablism is a form of discrimination or social prejudice against people with disabilities. It may also be referred to as disability discrimination, ablecentrism, physicalism, handicapism, and disability oppression. It is also sometimes known as disablism, although there is some dispute as to whether ableism and disablism are synonymous, and some people within disability rights circles find the latter term's use inaccurate. Discrimination faced by those who have or are perceived to have a mental disorder is sometimes called mentalism rather than ableism.