graphophone
noun
University
1
An improvement on the phonograph, using a floating stylus to cut grooves into a wax-coated cardboard cylinder.
2
An optical device for showing (or photographing) an image when projected upon the atmosphere as a screen.
An improvement on the phonograph, using a floating stylus to cut grooves into a wax-coated cardboard cylinder.
An optical device for showing (or photographing) an image when projected upon the atmosphere as a screen.