What is Ectoplasm?

Spirit energy appearing in the form of a wispy white vapor, fog or mist containing swirls, contrails, or streaks. This may manifest as cloud-like masses, contrails left behind from fast-moving orbs, vortices, and as apparitions. Appears to the naked eye or later on developed.

In parapsychology, ectoplasm (From the Greek ektos, “outside,” + plasma, “something formed or molded”) is a term coined by Charles Richet to denote a substance or spiritual energy "exteriorized" by physical mediums. ...