E0056300 (ē′gō-ĭst)n.1. One devoted to one's own interests and advancement; an egocentric person.2. An egotist.3. An adherent of egoism.e′go·is′tic, e′go·is′ti·cal adj.e′go·is′ti·cal·ly adv.TranslationségoïstementEncyclopediaSeeegoismThesaurusSeeegoistical