planchette Meaning, Definition & Usage

  1. noun a triangular board supported on casters; when lightly touched with the fingertips it is supposed to spell out supernatural (or unconscious) messages

WordNet

Plan`chette" noun
Etymology
F. See Planchet.
Definitions
  1. A circumferentor. See Circumferentor.
  2. A small tablet of wood supported on casters and having a pencil attached. The characters produced by the pencil on paper, while the hand rests on the instrument and it is allowed to move, are sometimes translated as of oracular or supernatural import.

Webster 1913