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n. 1. A thin, flat, circular object or plate. 2. Something resembling such an object: The moon's disk was reflected in the pond. 3. a. The disk used in a disc brake. b. A disk used on a disk harrow. 4. A round, flattened structure in a plant or animal, such as an intervertebral disk. 5. Botany The central area bearing numerous disk flowers in the flower head of a composite plant such as a daisy. 6. Computers a. An optical disc, especially a compact disc. b. A magnetic disk, such as a floppy disk or hard disk. c. The data stored on such objects. 7. A phonograph record. 8. A circular grid in a phototypesetting machine. tr.v. disked, disk·ing, disks also disced or disc·ing or discs 1. To work (soil) with a disk harrow. 2. To make (a recording) on a phonograph record. [Latin discus, quoit, from Greek diskos, from dikein, to throw; see deik- in the Appendix of Indo-European roots.] |
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