- An optical disc format typically utilized for audio and video, such as movies and music. This format usually provides two analog and two digital audio channels, and its horizontal resolution is generally 425 lines. Also, a disc encoded in this format. Such discs are usually 12 or 8 inches in diameter, and a laserdisc player is required to read them. Its abbreviation is LD. Also spelled laser disc, laser disk, or laserdisk.
- Any optical disc format or disc.
- synonymlaser disk
Information & Library Science
- noun a plastic disk containing information in the form of small etched dots that can be read by a laser, used to record images or sound in digital form