spiritualism
19th century religious movement based on the belief that one can communicate with the spirits of the dead
en-GB/ˈspɪɹɪt͡ʃʊəlɪzəm/
en-US/ˈspɪɹɪt͡ʃuəˌlɪzəm/
19th century religious movement based on the belief that one can communicate with the spirits of the dead