compact disk

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a digitally encoded recording on an optical disk that is smaller than a phonograph record;
played back by a laser
• Syn:
compact disc, CD
• Hypernyms:
optical disk, optical disc, recording
• Hyponyms:
audio CD, audio compact disc, CD-R, compact disc recordable, CD-WO,
compact disc write-once, CD-ROM, compact disc read-only memory