compact disk

Noun
Synonyms: compact discCD

Open English WordNet

Noun (1)

  1. a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laserSynonyms: compact discCDType of optical disk, recordingKinds CD-R, audio CD, CD-ROM
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Webster's Dictionary (1913)

com′pact disc′, com′pact disk′ (kŏm′păkt dĭsk′), noun

a disk-shaped optical data storage medium approximately 4-3/4 in. in diameter, which stores binary data as microscopic nonreflective holes or pits in an otherwise reflective surface, and is recorded and played back by rotation in an electronic device containing a laser. It is often referred to by its abbreviation CD. It is a type of optical data storage medium. Compact disks are used for recordings of music as well as of data for computer applications. Syn. — CD.

Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54 · with additions: +PJC, WordNet 1.5

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