(n): a recording of acoustic signals
(n): something with a round shape resembling a flat circular plate
(n): a shape that is curved and without sharp angles
(n): (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored
(n): a device that preserves information for retrieval
(n): a flat circular plate
(n): a sheet of metal or wood or glass or plastic
(n): any circular or rotating mechanism
