| Library / English Dictionary |
OPTICAL DISC
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A disk coated with plastic that can store digital data as tiny pits etched in the surface; is read with a laser that scans the surface
Synonyms:
optical disc; optical disk
Classified under:
Nouns denoting man-made objects
Hypernyms ("optical disc" is a kind of...):
memory device; storage device (a device that preserves information for retrieval)
Hyponyms (each of the following is a kind of "optical disc"):
CD; compact disc; compact disk (a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser)
DVD; videodisc; videodisk (a digital recording (as of a movie) on an optical disk that can be played on a computer or a television set)
