Webster's Revised Unabridged Dictionary · 1913

Zoetrope

Zoetrope , noun

[Greek {not transcribed} life + {not transcribed} turning, from {not transcribed} 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.