Definition of Data recovery:
Restoration in full or in part of the data stored in deleted or damaged data files. In case of file deletion, if the space originally occupied by the deleted file is not overwritten (or the disk is not reformatted after deletion) the file may be recoverable through common undelete programs. In case of damaged files (or files stored on damaged media), custom-written software and sophisticated equipment is required for any extent of recovery. Also called data restoration. See also data synchronization.
Meaning of Data recovery & Data recovery Definition