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Wordnet 3.0

NOUN (4)

1. sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove;
[syn: phonograph record, phonograph recording, record, disk, disc, platter]

2. something with a round shape resembling a flat circular plate;
- Example: "the moon's disk hung in a cloudless sky"
[syn: disk, disc, saucer]

3. (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored;
[syn: magnetic disk, magnetic disc, disk, disc]

4. a flat circular plate;
[syn: disk, disc]


The Collaborative International Dictionary of English v.0.48:

Disc \Disc\ (d[i^]sk), n. [See Disk, Dish.] A flat round plate; (Biol.) A circular structure either in plants or animals; as, a blood disc, a germinal disc, etc. Same as Disk. [1913 Webster]
The Collaborative International Dictionary of English v.0.48:

Disk \Disk\ (d[i^]sk), n. [L. discus, Gr. di`skos. See Dish.] [Written also disc.] 1. A discus; a quoit. [1913 Webster] Some whirl the disk, and some the javelin dart. --Pope. [1913 Webster] 2. A flat, circular plate; as, a disk of metal or paper. [1913 Webster] 3. (Astron.) The circular figure of a celestial body, as seen projected of the heavens. [1913 Webster] 4. (Biol.) A circular structure either in plants or animals; as, a blood disk; germinal disk, etc. [1913 Webster] 5. (Bot.) (a) The whole surface of a leaf. (b) The central part of a radiate compound flower, as in sunflower. (c) A part of the receptacle enlarged or expanded under, or around, or even on top of, the pistil. [1913 Webster] 6. (Zool.) (a) The anterior surface or oral area of c[oe]lenterate animals, as of sea anemones. (b) The lower side of the body of some invertebrates, especially when used for locomotion, when it is often called a creeping disk. (c) In owls, the space around the eyes. [1913 Webster] Disk engine, a form of rotary steam engine. Disk shell (Zool.), any species of Discina. [1913 Webster]
WordNet (r) 3.0 (2006):

disc n 1: sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove [syn: phonograph record, phonograph recording, record, disk, disc, platter] 2: something with a round shape resembling a flat circular plate; "the moon's disk hung in a cloudless sky" [syn: disk, disc, saucer] 3: (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored [syn: magnetic disk, magnetic disc, disk, disc] 4: a flat circular plate [syn: disk, disc]
Moby Thesaurus II by Grady Ward, 1.0:

34 Moby Thesaurus words for "disc": bulletin board, card, cartridge, cassette, catalog card, electrical transcription, file, filing card, film, index card, library catalog, magnetic tape, microcard, microdot, microfiche, microfilm, motion-picture film, phonograph record, platter, record, recording, scoreboard, scorecard, scoresheet, slip, tape, tape cartridge, tape cassette, tape recording, ticker tape, transcription, videotape, wax, wire recording
V.E.R.A. -- Virtual Entity of Relevant Acronyms (September 2014):

DISC Defense Information System Council (mil., USA)
The Free On-line Dictionary of Computing (18 March 2015):

disc disc drive British spelling of "disk", normally only used for "compact disc". (1995-07-30)