1. a disposition toward schism and secession from a larger group; the principles and practices of separatists

separatism is a serious problem in Quebec


demands for some form of separatism on grounds of religion have been perceived as a threat to mainstream education

Derivationally related forms: ↑separatist
Hypernyms: ↑disposition
2. advocacy of a policy of strict separation of church and state
Syn: ↑separationism
Hypernyms: ↑separation
3. a social system that provides separate facilities for minority groups
Syn: ↑segregation
Derivationally related forms: ↑segregationist (for: ↑segregation), ↑segregate (for: ↑segregation)

Useful english dictionary. 2012.