English noun: optical disk | |||
1. | optical disk (artifact) 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 | ||
Synonyms | optical disc | ||
Broader (hypernym) | memory device, storage device | ||
Narrower (hyponym) | CD, compact disc, compact disk, DVD, videodisc, videodisk | ||