optical disk

noun

Definition of optical disk 

: 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

First Known Use of optical disk

1977, in the meaning defined above

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Time Traveler for optical disk

The first known use of optical disk was in 1977

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More Definitions for optical disk

optical disk

noun

English Language Learners Definition of optical disk

: a computer disk on which information is recorded in a way that can be read by a laser

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