|n.||1.||A discus; a quoit.|
|2.||A flat, circular plate; |
|3.||(Astron.) The circular figure of a celestial body, as seen projected of the heavens.|
|4.||(Biol.) A circular structure either in plants or animals; |
|5.||(Bot.) The whole surface of a leaf.|
|6.||(Zool.) The anterior surface or oral area of clenterate animals, as of sea anemones.|
|Noun||1.||disk - something with a round shape like a flat circular plate|
|2.||disk - a flat circular plate|
|3.||disk - sound recording consisting of a disc with continuous grooves; formerly used to reproduce music by rotating while a phonograph needle tracked in the grooves|
|4.||disk - (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored|
|Verb||1.||disk - draw a harrow over (land)|
|(storage)||disk - 1. magnetic disk.|
2. compact disc.
3. optical disk.
Note: the american spelling, "disk", is normal for most computer disks whereas "compact disc", having come to computers via the audio world, is correctly spelled with a "c", indeed, this spelling is part of the CD standard.