Ectoplasm (from the Greek ektos, meaning "outside", and plasma, meaning "something formed or molded") is a term coined by Charles Richet to denote a substance or spiritual energy "exteriorized" by physical mediums. Ectoplasm is said to be associated with the formation of spirits,Template:By whom and asserted to be an enabling factor in psychokinesis.Template:By whom
Ectoplasm is said to be formed by physical mediums when in a trance state. This material is excreted as a gauze-like substance from orifices on the medium's body and spiritual entities are said to drape this substance over their nonphysical body, enabling them to interact in our physical and real universe.
Although the term is widespread in popular culture, the physical existence of ectoplasm is not accepted by science. Some tested samples purported to be ectoplasm have been found to be various non-paranormal substances. Other researchers have duplicated, with non-supernatural materials, the photographic effects sometimes said to prove the existence of ectoplasm.
- "General Conclusions on the Sixth Sense", excerpted from Our Sixth Sense (Rider & Co.) by Charles Richet, SurvivalAfterDeath.org.uk.
- Ectoplasm used during spirit materialization, Example of physical medium Ethel Post Parrish producing ectoplasm to materialize the entity Silver Belle during a seance under test conditions in the United States, 1953.da:Ektoplasma (parapsykologi)