Wordnet 3.0
NOUN (1)
1.
the theological doctrine (named after Nestorius) that Christ is both the son of God and the man Jesus (which is opposed to Roman Catholic doctrine that Christ is fully God);
The Collaborative International Dictionary of English v.0.48:
Nestorianism \Nes*to"ri*an*ism\, n.
The doctrines of the Nestorian Christians, or of Nestorius.
[1913 Webster]
WordNet (r) 3.0 (2006):
Nestorianism
n 1: the theological doctrine (named after Nestorius) that
Christ is both the son of God and the man Jesus (which is
opposed to Roman Catholic doctrine that Christ is fully
God)