Definition of defragmentation in English:

defragmentation

noun

Computing
  • See defragment

    • ‘Our first test involved setting up a daily defragmentation scheduled on a workstation used daily by six different people for spot editing of research documents.’
    • ‘You can also schedule defragmentation across your network.’
    • ‘It is also by far the quickest defragmentation engine I have come across.’
    • ‘His second problem was printing the status screen information at the end of the defragmentation.’
    • ‘Before upgrading your hard disk it's best to do a complete disk checkup including disk scan, defragmentation, etc.’

Pronunciation

defragmentation

/ˌdiːfraɡmənˈteɪʃ(ə)n/