Definitions for ecumenismˈɛk yʊ məˌnɪz əm, ɪˈkyu-; esp. Brit. ˈi kyʊ-
Random House Webster's College Dictionary
ec•u•me•nismˈɛk yʊ məˌnɪz əm, ɪˈkyu-; esp. Brit. ˈi kyʊ-(n.)
ecumenical principles and practices, esp. as manifested in a movement promoting cooperation and unity among religious groups.
Origin of ecumenism:
a movement promoting union between religions (especially between Christian churches)
ecumenism, ecumenicism, ecumenicalism(noun)
(Christianity) the doctrine of the ecumenical movement that promotes cooperation and better understanding among different religious denominations: aimed at universal Christian unity
Ecumenical doctrines and practices, especially as manifested in the ecumenical movement.