Webster's Revised Unabridged Dictionary · 1913

Zoopraxiscope

Zoopraxiscope , noun

[Zoo- + Greek {not transcribed} a doing, an acting (from {not transcribed} to do) + -scope.]

An instrument similar to, or the same as, the, the phenakistoscope, by means of which pictures projected upon a screen are made to exhibit the natural movements of animals, and the like.