Definition of "disk" in English

noun

1. A thin, flat, circular plate or similar object.

   • A coin is a disk of metal.

2. (geometry) A two-dimensional geometric region, the set of points bounded by a circle.

3. (figuratively) Something resembling a disk.

   • Venus' disk cut off light from the Sun.

4. (anatomy) An intervertebral disc

5. (dated) A vinyl phonograph/gramophone record.

   • Turn the disk over, after it has finished.

6. (computer hardware) Ellipsis of floppy disk.

   • He still uses disks from 1979.

7. (computer hardware) Ellipsis of hard disk.

8. (computer hardware, nonstandard) Ellipsis of optical disk.

   • She burned some disks yesterday to back up her computer.

9. (agriculture) A type of harrow.

10. (botany) A ring- or cup-shaped enlargement of the flower receptacle or ovary that bears nectar or, less commonly, the stamens.

verb

1. (agriculture) To harrow.

2. (aviation, of an aircraft's propeller) To move towards, or operate at, zero blade pitch, orienting the propeller blades face-on to the oncoming airstream and maximizing the drag generated by the propeller.