ecumenicism

[ ek-yoo-men-uh-siz-uhm or, especially British, ee-kyoo- ]

noun
  1. ecumenicalism; ecumenism.

Origin of ecumenicism

1
First recorded in 1960–65; ecumenic(al) + -ism

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024