[1] : The Collaborative International Dictionary of English v.0.48

zoetrope \zo"etrope\, n. gr. ? life + ? turning, from ? to
   turn.
   an optical toy, in which figures made to revolve on the
   inside of a cylinder, and viewed through slits in its
   circumference, appear like a single figure passing through a
   series of natural motions as if animated or mechanically
   moved.
   1913 webster

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Zoetrope, definition of term: Zoetrope
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