| Library / English Dictionary |
COMPACT DISC
I. (noun)
Sense 1
Meaning:
A digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser
Synonyms:
CD; compact disc; compact disk
Classified under:
Nouns denoting man-made objects
Hypernyms ("compact disc" is a kind of...):
optical disc; optical disk (a disk coated with plastic that can store digital data as tiny pits etched in the surface; is read with a laser that scans the surface)
recording (a storage device on which information (sounds or images) have been recorded)
Hyponyms (each of the following is a kind of "compact disc"):
audio CD; audio compact disc (compact discs used to reproduce sound (voice and music))
CD-R; CD-WO; compact disc recordable; compact disc write-once (a compact disc on which you can write only once and thereafter is read-only memory)
CD-ROM; compact disc read-only memory (a compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user)
