Noun
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.
Source: Webster's dictionaryDuring the 1870s, Eadweard Muybridge began recording motion photographically and invented a zoopraxiscope with which to view his recordings. Source: Internet
He copied the images in the form of silhouettes onto a disc to be viewed in a machine he had invented, which he called a " zoopraxiscope ". Source: Internet