disk (disk),USA pronunciation n. - any thin, flat, circular plate or object.
- any surface that is flat and round, or seemingly so:the disk of the sun.
- Sound Reproductiondisc (def. 1).
- Computingany of several types of media consisting of thin, round plates of plastic or metal, used for external storage:magnetic disk;floppy disk;optical disk.
- Botany, Zoologyany of various roundish, flat structures or parts.
- See intervertebral disk.
- Botany(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.
- Mathematicsthe domain bounded by a circle.
- [Archaic.]discus.
v.t. - Informal Termsdisc (def. 3).
- to cultivate (soil) with a disk harrow.
Also, disc (for defs. 1, 2, 4–9, 12).
- Latin discus discus; compare dish
- 1655–65
disk′like′, adj.