A belief that the deadcommunicate with the living, especially through a medium. Used in a broader sense than spiritism/Kardecism, in which followers specifically believe in Allan Kardec's Spiritist Codification, a series of books that contain additional moral and other teachings.
(spiritism) One who practises spiritism (a.k.a. spiritualism); a believer in the possibility of communication with the dead; one who attempts to communicate with the dead.
“Concomitantly, there has been a shift from religion to spiritualisms manifested in a trend toward syncretism and the simultaneous identification with different traditions.”
“His works included complex sculptures and installations, paintings, photography and performance art and drew on influences from folk, comics and spiritualisms to pop psychology, punk and psychedelia.”