from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An optical disc used to store audio or other data.
from the GNU version of the Collaborative International Dictionary of English
- n. 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.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser
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