praxinoscope

from The Collaborative International Dictionary of English v.0.48

Praxinoscope \Prax*in"o*scope\, n. [Gr. ? action + -scope.]
   (Opt.)
   An instrument, similar to the phenakistoscope, for presenting
   to view, or projecting upon a screen, images the natural
   motions of real objects.
   [1913 Webster]