compact disk
NounOpen English WordNet
Noun (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
Word of the day · Nov 15About this word
aberrationnoun
a state or condition markedly different from the norm
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