- Albigensianism, Catharism - a Christian movement considered to be a medieval descendant of Manichaeism in southern France in the 12th and 13th centuries; characterized by dualism (asserted the coexistence of two mutually opposed principles, one good and one evil); was exterminated for heresy during the Inquisition
--1 is a kind of Christianity, Christian religion; heresy, unorthodoxy