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Noun: schism  s(k)i-zum
  1. Division of a group into opposing factions
    "another schism like that and they will wind up in bankruptcy";
    - split
  2. The formal separation of a church into two churches or the withdrawal of one group over doctrinal differences

Derived forms: schisms

Type of: breach, break, division, falling out, rift, rupture, severance

Encyclopedia: Schism, Eastern