\Nes*to"ri*an\, n. (Eccl. Hist.)
An adherent of Nestorius, patriarch of Constantinople to the
fifth century, who has 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 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}.

\Nes*to"ri*an\, a.
1. Of or relating to the Nestorians.
2. relating to, or resembling, Nestor, the aged warior and
   counselor mentioned by Homer; hence, wise; experienced;
   aged; as, Nestorian caution.