a kind of ghost thought by some to be responsible for mysterious noisy disturbances
Origin of poltergeistGerman ; from poltern, to make noise, rumble (; from Indo-European base an unverified form bhel- from source bell) + geist, ghost
A ghost that manifests itself by noises, rappings, and the creation of disorder.
Origin of poltergeistGerman : poltern, to make noises (from Middle High German boldern) + Geist, ghost (from Middle High German, from Old High German).
(plural poltergeists or poltergeister)