/ ˈdʒeɪpeg; NAmE / noun ( computing )
1.
[ U ] technology which reduces the size of files that contain images (= the abbreviation for 'Joint Photographic Experts Group') :
JPEG files
2.
[ C ] an image created using this technology :
You can download the pictures as JPEGs.
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WORD ORIGIN
1990s: abbreviation of Joint Photographic Experts Group .