[Nes.to.ri.an] adj (1565) 1: of or relating to the doctrine ascribed to Nestorius and ecclesiastically condemned in 431 that divine and human persons remained separate in the incarnate Christ
2: of or relating to a church separating from Byzantine Christianity after 431, centering in Persia, and surviving chiefly in Asia Minor -- Nestorian n -- Nes.to.ri.an.ism n