From Longman Dictionary of Contemporary EnglishRelated topics: Shapes, patterns, Recording, Computers, Human, Medicinediscdisc (also disk especially American English) /dɪsk/●くろまる●くろまる○しろまるS3W3 noun [countable]1CFCIRCLEa roundflatshape or objectthree keys attached to a metal disc2TCRa compactdisc3TCRa record that you play on a record player4British EnglishTD a computer diskon discThe report form is available on disc from Personnel.5HBHMa flat piece of cartilage between the bones of your backHe retired early because of a slipped disc (=one that has moved out of its correct place). →disc brakes, disc jockey, disk drive, laser diskExamples from the Corpusdisc• If you sat in the fireplace and looked up you could see a disc of sky and several ironhooks in silhouette.• The reasonwhy we've stopped you is that there's no disc on your windscreen.• Some rivalissuesadd another work and others get the symphony into one disc.• But MacLeod pulls it off, even writing 10 of the 12 songs on the disc.• There are not many sets simpler than the unitdisc!• The unit disc certainly ought to count as recursive!slipped disc• Could it be a slipped disc?• He was only twenty-six and had just recovered from a slipped disc.• He retired early from electrical work because of a slipped disc.From Longman Business Dictionarydiscdisc /dɪsk/ noun [countable]1a COMPACT DISC2British English a computer DISK