- any thin, flat, circular plate or object.
- any surface that is flat and round, or seemingly so: the disk of the sun.
- disc (def. 1).
- any of several types of media consisting of thin, round plates of plastic or metal, used for external storage: magnetic disk;hard disk;optical disk.
- any of various roundish, flat structures or parts.
- intervertebral disk.
- (in the daisy and other composite plants) the central portion of the flower head, composed of tubular florets.
- any of the circular steel blades that form the working part of a disk harrow.
- the domain bounded by a circle.
- discus.
- disc (def. 3).
- to cultivate (soil) with a disk harrow.
- a variant spelling (esp US and Canadian) of disc
- a direct-access storage device consisting of a stack of plates coated with a magnetic layer, the whole assembly rotating rapidly as a single unit. Each surface has a read-write head that can move radially to read or write data on concentric tracks
