n. 1. A certain Oriental system of theosophy. A. P. Sinnett. [ 1913 Webster ]
2. Belief in occult powers or in supernatural forces other than the God of traditional religions, such as in magic, necromancy, alchemy, and astrology. [ PJC ]
3. The study and alleged use of supernatural agencies as in magic, astrology, witchcraft, alchemy, necromancy, spiritualism (communication with the dead), and fortune-telling. [ PJC ]