Definition of defrag in English:

defrag

Line breaks: de¦frag
Pronunciation: /diːˈfraɡ
 
/

verb (defrags, defragging, defragged)

Computing
  • short for defragment.
    More example sentences
    • I have more important chores, like formatting and defragging my floppies.
    • After every test, all drives were defragged and the system was rebooted.
    • I spend a good chunk of time trying to track down the problem - running diagnostics, defragging the hard drive, updating drivers, etc.

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Pronunciation: skəʊʃ
noun
a small amount; a little