compact-disc

Collins
World English Dictionary
compact disc (ˈkɒmpækt)
 
n
Also called: compact audio disc, CD, Abbreviation: CAD a small digital audio disc on which sound is recorded as a series of metallic pits enclosed in PVC; the disc is spun by the compact disc player and read by an optical laser system

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
compact disk or compact disc   (kŏm'pākt')  Pronunciation Key 
A small optical disk on which data such as music, text, or graphic images is digitally encoded.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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