MANICHAEAN; MANICHEAN; 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. The Manichæans stand as representatives of dualism pushed to its utmost development. Tylor.
FOIL n.
ace between the cusps in Gothic architecture; a rounded or leaflike ornament, in windows, niches, etc. A group of foils is called trefoil, quatrefoil, quinquefoil, etc., according to the number of arcs of which it is composed. Foil stone, an imitation of a jewel or precious stone.