an optical disk approximately 4.75 inches (12 centimeters) in diameter, on which a program, data, music, etc., is digitally encoded for a laser beam to scan, decode, and transmit to a playback system, computer monitor, or television set. Abbreviation: CD
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Question 1 of 7
What does “vacillate” mean?
Compare optical disk (def. 1).
Words nearby compact disk
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Scientific definitions for compact disk
compact disc (kŏm′păkt′)
A small optical disk on which data such as music, text, or graphic images is digitally encoded.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.