Manichean :: Manichean (a.) Of or pertaining to the Manichaeans.
Manichee :: Manichee (n.) A believer in the doctrines of Manes, a Persian of the third century A. D., who taught a dualism in which Light is regarded as the source of Good, and Darkness as the source of Evil..
Manicheism :: Manicheism (n.) The doctrines taught, or system of principles maintained, by the Manichaeans..