spiritualism
spi·ri·tua·lism
noun
2.
the belief that the spirits of dead people can communicate with people who are still alive (especially via a medium)
Origin
From spiritual + -ism.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.