optical disk
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.optical disk
nounDefinition of OPTICAL DISK
: a disk with a plastic coating on which information (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
See First Known Use of OPTICAL DISK
1977
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