noun. ['ˈspɪrɪˌtʃuːəˌlɪzm'] the belief that the spirits of dead people can communicate with people who are still alive (especially via a medium).
noun. ['ˈspɪrɪˌtʃuːəˌlɪzm'] concern with things of the spirit.
noun. ['ˈspɪrɪˌtʃuːəˌlɪzm'] (theology) any doctrine that asserts the separate existence of God.