Source : Webster's Revised Unabridged Dictionary (1913)

Scioptic \Sci*op"tic\, a. [Gr. ? shadow + ? belonging to sight:
   cf. F. scioptique. See {Optic}.] (Opt.)
   Of or pertaining to an optical arrangement for forming images
   in a darkened room, usually called scioptic ball.

   {Scioptic ball} (Opt.), the lens of a camera obscura mounted
      in a wooden ball which fits a socket in a window shutter
      so as to be readily turned, like the eye, to different
      parts of the landscape.