planchette

Noun
  1. A triangular board supported on casters;
    When lightly touched with the fingertips it is supposed to spell out supernatural (or unconscious) messages (synset 103960783)
    is a type of: board - a flat piece of material designed for a special purpose
    is a part of: ouija, ouija board - a board with the alphabet on it; used with a planchette to spell out supernatural messages

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