Optical disc

noun

Definitions

Noun
  1. 1
    A modern data storage medium consisting of a flat disc read mechanically by illumination with laser light, including the Laserdisc, compact disc, DVD, and Blu-ray.
  2. 2
    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 wordnet

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