One who believes in direct intercourse with departed spirits, through the agency of persons commonly called mediums, by means of physical phenomena; one who attempts to maintain such intercourse; a spiritist.

One who believes in the communication between this world and the invisible world, and who endeavors to mold his or her character and conduct in accordance with the highest teachings derived from such communion.

a believer in Spiritualism and/or anyone who believes in the existence of a spiritual being besides the material ones.

One who believes in Spiritism.

a person who believes that the spirit survives the death of the body and can communicate with people who are still alive.

A person who believes in Spiritualism. This is a movement which was founded in the USA during 1848 by the Fox sisters in New York.