DISC

US also disk [noun] [C] - a circular flat objectThe dog had its name engraved on a little metal disc attached to its collar.The orange disc of the sun sank towards the horizon.See also CD; disk.USAGE: In American English the spelling 'disc' is used for a musical record, a compact disc at compact (CLOSE TOGETHER), a disc brake, and a video disc at video.A disc in your back is a small piece of cartilage (= a strong elastic body tissue) between the bones.Disc is also another name for a musical record or a compact discThis recording is available on disc and on cassette.(UK) A disc is also a disk (= a device on which computer information is stored).A disc brake is a type of brake where two pieces of material are pressed against a metal disc which is fixed to a wheel.A disc jockey ( DJ) is someone who plays records and talks on the radio or at an event where people dance to recorded popular music, such as a disco.