[dee-frag-muhnt, -ment] Computers.
verb (used with object)
to reorganize files on (a disk) so that the parts of each file are stored in contiguous sectors on the disk, thereby improving computer performance and maximizing disk space.
Also, Informal, defrag.

defragmentation, noun
defragmenter, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To defragment's 21st Century Lexicon
Main Entry:  defragment1
Part of Speech:  vt
Definition:  to reorganize or reallocate the storage on a computer's hard disk by bringing together files or parts of files to optimize the machine's performance; also called defrag
Etymology:  1983-88
Usage:  defragmenting, n; defragmentation, n; defragmenter, n
Main Entry:  defragment2
Part of Speech:  vi
Definition:  to carry out or undergo defragmentation; also called defrag
Etymology:  1983-88
Usage:  defragmenting, n; defragmentation, n; defragmenter, n's 21st Century Lexicon
Copyright © 2003-2014, LLC
Cite This Source
Word Origin & History

1992, in computer sense, from de- + fragment.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Science Dictionary
defragment   (dĭ-frāg'mənt)  Pronunciation Key 
To reorganize the way information is stored on a computer disk so that all of the information belonging to a file is stored in a single, contiguous area the disk.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Computing Dictionary

defragment definition

tool, file system
/dee-frag(-ment)'/ (Or "defrag") To coalesce files and free space on a file system; to reduce fragmentation.

The Free On-line Dictionary of Computing, © Denis Howe 2010
Cite This Source
Example sentences
Collaborate to defragment deaf education and vocational rehabilitation services.
To restrict which accounts are able to defragment drives and perform other storage volume tasks.
Defragment, and release unused space in the database.
Related Words
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature