optical disc

noun

variants or optical disk
plural optical discs or optical disks
: a disk with a plastic coating on which information (such as music, visual images, or computer data) is recorded digitally (as in the form of tiny pits) and which is read by using a laser
The PS5 is available in two versions. … At this point, people are happy to get their hands on either one, but if you don't have a library of optical discs—for Blu-ray movies, used games or old PS4 games—CNET recommends that you go with the $400 version.Dave Johnson

Examples of optical disc in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Since the introduction of Blu-ray technology more than a decade ago, the format has represented the pinnacle of video quality on optical discs. Bestreviews, Mercury News, 5 Nov. 2025

Word History

First Known Use

1957, in the meaning defined above

Time Traveler
The first known use of optical disc was in 1957

Cite this Entry

“Optical disc.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/optical%20disc. Accessed 14 Nov. 2025.

Last Updated: - Updated example sentences
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