fissioning

noun

1. The act of splitting into two separate parts

   “There is the slow international fissioning of the Anglican communion, where conservative Africans and Asians have been trying for years to throw out the more liberal churches of North America, with the Church of England caught uneasily between factions. It's difficult to see any compromise there except the peace of exhaustion.”

verb

1. (form-of, gerund, participle, present)present participle and gerund of fission