Nestorian

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Of or relating to the theological doctrine, declared heretical in 431, that within Jesus are two distinct persons, divine and human, rather than a single divine person.
• adjective Of or relating to a Christian church whose teachings are historically derived from this doctrine.

from The Century Dictionary.

• Of or pertaining to Nestorius (see Nestorianism), or the Nestorians or their doctrines.
• noun A follower of Nestorius; one who denies the hypostatic union of two natures in one person in Christ, holding that he possesses two distinct personalities, the union between which is merely moral.
• noun One of a modern Christian body in Persia and Turkey, the remnant of the once powerful Nestorian denomination.

from the GNU version of the Collaborative International Dictionary of English.

• proper noun (Eccl. Hist.) An adherent of Nestorius, patriarch of Constantinople in the fifth century, who was condemned as a heretic for maintaining that the divine and the human natures were not merged into one nature in Christ (who was God in man), 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 the sect established by the followers of Nestorius in Persia, India, and other Oriental countries, and still in existence. Opposed to Eutychian.
• adjective Of or relating to the Nestorians.
• adjective Relating to, or resembling, Nestor, the aged warrior and counselor mentioned by Homer; hence, wise; experienced; aged.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective sometimes pejorative relating to teachings or to the followers of Nestorius
• noun sometimes pejorative A perceived follower of Nestorius in the fourth and fifth centuries. A member of a "Nestorian" church.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a follower of Nestorius
• adjective relating to Nestorius or Nestorianism