Nes-tō'ri-an1, n.
n. (Eccl. Hist.) An adherent of Nestorius, patriarch of Constantinople in the fifth century, who was deposed and condemned as a heretic for maintaining that the divine and human natures in Christ were not so united as to form but a single person, and, hence, that it was improper to call Mary the mother of God, though she might be called the mother of Christ; also one of those modern Christians of Persia and India who are the remains of the Nestorian sect. Murdock.