disc (any flat or nearly flat circular object); (mathematics) disc / disc (any flat or nearly flat circular object); (athletics) discus / disc (any flat or nearly flat circular object); (music) disk; record / disc (any flat or nearly flat circular object); (computing) disk / disc (any flat or nearly flat circular object); (anatomy) disc / disc (any flat or nearly flat circular object); (mechanics) disk / disc (any flat or nearly flat circular object); (astronomy) disk