The Collaborative International Dictionary
laser disk \laser disk\ n. A digital data storage medium consisting of a thin disk onto which the data is impressed by a laser, in the form of a linear sequence of dots; same as optical disk. The data is subsequently read back by the use of a laser beam. See also compact disk.
Note: The original disk may be created by use of a laser, but copies of the original disk may be created by a replicating process which does not itself require a laser.
WordNet
n. a disk coated with plastic that can store digital data astiny pits etched in the surface; is read with a laser that scans the surface [syn: optical disc]
Usage examples of "optical disk".
It is indeed unfortunate that books made of paper were replaced by magneto-optical disk storage by the middle of the twenty-first century.
But now the planet was revealed to be dense with artifacts older than any skyscraper or pyramid, richer than any papyrus or optical disk.
We have fifty portable optical disk players used for recorded park tours and about three hundred music disks.
When completed, he made sure to save it on the optical disk, so they could play it back during the mission.
Opening the driver's door, he leaned in and slotted a blank optical disk into the computer.
DNA was such a large molecule that each species required ten gigabytes of optical disk space to store details of all the iterations.
Our century's electromagnetic media, from radio to the optical disk, are more perishable still.