Meaning of deduplication in English:


Pronunciation /diːˌdjuːplɪˈkeɪʃ(ə)n/


mass noun
  • The elimination of duplicate or redundant information, especially in computer data.

    ‘deduplication removes the repetitive information before storing it’
    • ‘Disk-based storage with deduplication can offer protection as well as efficient and high-speed backup and recovery processes.’
    • ‘There is a degree of compression and deduplication with the focus being on performance rather than lowering the cost / GB.’
    • ‘The array also offers deduplication and hardware-based data compression capabilities.’
    • ‘Deduplication and compression lower the cost of both the flash and RAM.’
    • ‘Increasing demand for storage means deduplication has moved from nice to have to absolute must.’


Mid 19th century (in botanical sense ‘division of one organ into two’): via French from de- + duplication.