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  1. disk
  2. noun

    • 1. a flat, thin, round object:

      heavy metal disks the size of hockey pucks onion soup ladled over a disk of cheese
    • 2. an information storage device for a computer in the shape of a round flat plate that can be rotated to give access to all parts of the surface. The data may be stored either magnetically (in a magnetic disk) or optically (in an optical disk such as a CD-ROM).

    • 3. a CD or phonograph record.

    • 4. one of the suits in some tarot packs, corresponding to coins in others.

    • 5. a shape or surface that is round and flat in appearance:

      the smudged yellow disk of the moon
    • 6. a layer of cartilage separating adjacent vertebrae in the spine:

      he suffered a prolapsed disc
    • 7. (in a composite flower head of the daisy family) a close-packed cluster of disk florets in the center, forming the yellow part of the flower head.


    • 1. cultivate (a field) with a disk harrow.

  3. Variation

    • n.: noun: disc, plural noun: discs

    • noun

      US spelling of disc, also widely used in computing contexts
    • noun

      a device which allows a computer to read from and write on to computer disks.
    • noun

      a thickening of the epidermis of an insect larva which, on pupation, develops into a particular organ of the adult insect.
    • noun

      another term for blastodisk
    • noun

      a rigid nonremovable magnetic disk with a large data storage capacity.
    • noun

      a rotating disk of matter formed by accretion around a massive body (such as a black hole) under the influence of gravitation.
    • adjective

      flat, thin, and circular like a disk.
    • noun

      (in a composite flower head of the daisy family) any of a number of small tubular and usually fertile florets that form the disk. In rayless plants such as the tansy the flower head is composed entirely of disk florets.
    • adjective

      having a flat, circular shape or appearance:
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