| compact disk |
a small disk on which music or information is stored. A compact disk is played on a machine that uses a laser to read it. |
| digital video disc |
an optical storage format for digital data, or the physical disc that the data is stored on, resembling a compact disc but with greater storage capacity; DVD. [2 definitions] |
| disc brake |
a brake that operates by use of pressure exerted from two fixed pads against a rotating disc, as in an automobile. |
| disc jockey |
a person whose job is to play recorded music on the radio or for an event such as a dance. |
| disk drive |
a device inside or connected to a computer that copies data to and from a hard disc or floppy disc. |
| disk flower |
any of the small tubular tightly packed flowers making up the center of the flower head of certain composite plants, such as the aster or daisy. |
| disk harrow |
a farming implement having sharp circular blades set at various angles to breakup plowed soil before planting. |
| disk jockey |
see "disc jockey." |
| disk wheel |
a wheel with a solid disk instead of spokes between hub and rim, used esp. on automobiles. |
| floppy disk |
a thin plastic disk with a special coating, on which computer information can be stored; diskette. |
| hard disk |
a rigid, magnetized disk built into a computer that is capable of storing a large amount of data. |
| laser disk |
see "optical disk." |
| optical disk |
a disk on which material such as information, pictures, or music is stored in the form of tiny depressions and from which it is retrieved or played by means of a laser scanner. [2 definitions] |
| slipped disk |
a displacement or herniation of an intervertebral disk, which results in back pain or sciatica. |
| sun disk |
an ancient Near Eastern religious symbol representing the sun god and consisting of a disk and two serpents flanked by a pair of outstretched wings. [2 definitions] |