kinetoscope

An instrument for producing curves by the combination of circular movements; -- called also kinescope. Also: kinescope

An obsolete form of moving picture viewer, in which a film carrying successive instantaneous views of a moving scene travels uniformly through the field of a magnifying glass. The observer sees each picture, momentarily, through a slit in a revolving disk, and these glimpses, blended by persistence of vision, give the impression of continuous motion. It has been superseded by more recent versions of movie projector and electronic video viewers.