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.