Definition of automatograph in English:

automatograph

noun

historical
  • A scientific form of the planchette used for recording involuntary movements of the hand and arm.

Origin

Late 19th century. From ancient Greek αὐτόματος acting of itself + -graph.

Pronunciation

automatograph

/ˌɔːtəˈmatəɡrɑːf//ˌɔːtəˈmatəɡraf/