A schismatic group is a group of people who have split from a larger organization due to differences in beliefs or practices. The term 'SECT' is often used to refer to such a group, and it is derived from the Latin word 'secta, ' which means 'school of thought.' A SECT is typically a small religious group that has broken away from a larger denomination or church. Sects often have their own unique beliefs and practices, which can be seen as a challenge to the mainstream religion.