optical disc

optical disc

or optical disk

n.

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.

optical disc

n

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

op′tical disc′

n.

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.

Thesaurus

Noun

1.

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