Used attributively in phrases such as "poltergeist activity"; functions as relational adjective.
Definitions
poltergeistnoun
A supernatural being or ghost that is believed to be responsible for physical disturbances, such as loud noises and objects being moved or thrown around.
The family was convinced that a poltergeist was causing the strange noises and moving objects in their home.
poltergeistadjective
Relating to or characteristic of a poltergeist; involving unexplained physical disturbances attributed to a ghost.
Investigators recorded poltergeist activity in the abandoned school.