CLAIRVOYANCE, a word used with several different meanings in spiritualism and psychical research. Sometimes it is used to denote transcendental vision of beings on another plane of existence, while F. W. H. Myers, in the glossary to his Human Personality, defines it as "the faculty or act of perceiving as though visually, with some coincidental truth, some distant scene." It is now, however, often used as a term complementary to and exclusive of telepathy (q.v.), to denote all forms of supernormal cognition where the percipient's knowledge is not derived from another mind, whether or not the knowledge is communicated as a visual impression. It is in this last sense that the word is used in the article on PSYCHICAL RESEARCH (q. v.).