The Collaborative International Dictionary
Partialist
Partialist \Par"tial*ist\ n.
One who is partial. [R.]
(Theol.) One who holds that the atonement was made only for a part of mankind, that is, for the elect.
Wiktionary
partialist
n. 1 One who is partial. 2 (context theology English) One who holds that the atonement was made only for a part of mankind, i.e. for the elect.