☆ a device for reproducing sound that has been mechanically transcribed in a spiral groove on a circular disk or cylinder: a stylus following the groove in the revolving disk or cylinder transmits vibrations which are converted into sound
See phonograph in American Heritage Dictionary 4
(fōˈnə-grăfˌ)
noun
A machine that reproduces sound by means of a stylus in contact with a grooved rotating disk.