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Use; practice; especially, exercise or discipline for a specific purpose or object. "The praxis and theory of music." Wood.

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.

ectroscope, kinematograph, kinetoscope, veriscope, vitagraph, vitascope, zoögyroscope, zoöpraxiscope, etc.