optical disc

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optical disc

or optical disk

A plastic-coated disk on which data, such as text, music, or video, is digitally stored as microscopic regions of varying reflectivity and is read by scanning the surface with a laser. Also called laser disc.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

optical disc

(Computer Science) computing an inflexible disc on which information is stored in digital form by laser technology. Also called: video disc

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

op′tical disc′

1. Also called laser disc. a grooveless disk on which digital data, as text, music, or pictures, are stored as tiny pits in the surface and read or replayed by a laser beam scanning the surface.

2. videodisc.

Compare compact disc.

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Noun

optical disc - 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

optical disk

compact disc, compact disk, CD - a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser

memory device, storage device - a device that preserves information for retrieval

DVD, videodisc, videodisk - a digital recording (as of a movie) on an optical disk that can be played on a computer or a television set

Translations

disco ottico

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