with regard to parapsychology, an alleged fantasy or impossible occurrence, like the sighting of a ghost, which is regardless, still seen by more than one individual. Since it contains a perception in lieu of a stimulant, the encounter is categorized as a hallucination; that being said, since it is a mutual experience, it's considered to be veridical instead of illusory.

VERIDICAL HALLUCINATION: "Both of the young girls have been suffering from veridical hallucinations."