noun
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
• Syn: ↑optical disc
• Hypernyms: ↑memory device, ↑storage device
• Hyponyms: ↑compact disk, ↑compact disc, ↑CD, ↑videodisk, ↑videodisc, ↑DVD
* * *
noun, pl ⋯ disks [count]
: a computer disk on which information is recorded in a way that can be read by a laser
Useful english dictionary. 2012.