S0271700 (sĕp′ər-ə-tĭst, sĕp′rə-, sĕp′ə-rā′-)n.1. One who secedes or advocates separation from a group, as from a nation or an established church.2. One who advocates cultural, ethnic, or racial separation.sep′a·ra·tism n.sep′a·ra·tist adj.sep′a·ra·tis′tic adj.EncyclopediaSeeseparatist