schism
Pronunciation:
/ˈskɪzəm/noun
Definitions
A split or separation within a group or organization, typically caused by discord.
A formal division or split within a religious body.
Example: The schism between Sunnis and Shias happened quite early in Islamic history.
A split within Christianity whereby a group no longer recognizes the Bishop of Rome as the head of the Church, but shares essentially the same beliefs with the Church of Rome. In other words, a political split without the introduction of heresy.