Wordnet 3.0
NOUN (2)
1.
a religious doctrine or theory based on Jesus or Jesus' teachings;
2.
the branch of theology concerned with the person and attributes and deeds of Christ;
The Collaborative International Dictionary of English v.0.48:
Christology \Chris*tol"o*gy\, n. [Crist + -logy.]
A treatise on Christ; that department of theology which
treats of the personality, attributes, or life of Christ.
[1913 Webster]
WordNet (r) 3.0 (2006):
Christology
n 1: a religious doctrine or theory based on Jesus or Jesus'
teachings
2: the branch of theology concerned with the person and
attributes and deeds of Christ