Definition of duplication in English:



mass noun
  • 1The action or process of duplicating something.

    ‘an attempt to avoid unnecessary duplication of effort’
    • ‘It is possible that the primary physician might be able to address the problem or may even have already done so, so this action results in unnecessary duplication of effort.’
    • ‘It is aimed at making the prosecution process more efficient and avoiding duplication.’
    • ‘The result is inefficiency, the unnecessary duplication of services, extra pressure on overstretched surgeons and their teams and needless trauma for patients.’
    • ‘The process of duplication ensures that at least one copy of your information is available in the event the primary copy is disrupted.’
    • ‘Scale free networks can be explained through the simple process of duplication and preferential attachment.’
    • ‘Mechanisms are clearly needed for sharing of data, archiving of all relevant findings whether positive or negative, and avoiding duplication of effort.’
    • ‘Now, the idea there, as I understand it, is to avoid unnecessary duplication between submissions.’
    • ‘In this manner the brain avoids duplication of function.’
    • ‘All parties were permitted to be represented at the various phases in a manner designed to avoid unnecessary duplication.’
    • ‘Coordination of clinical trials throughout Europe could greatly enhance the potential of new investment in this area and would avoid duplication of effort.’
    • ‘Services are in the process of being centralised to avoid duplication of treatments and spreading staff too thinly across both Epsom and St Helier hospitals.’
    • ‘That would simply lead to a proliferation of bodies, unnecessary duplication of costs and effort, and coordination problems.’
    • ‘Good progress has been made in efforts to cut out duplication and also take off the names of those since found safe and well.’
    • ‘The sequence of bases for genes of fundamental processes such as DNA duplication and respiration are almost the same in all cells.’
    • ‘This avoids duplication, cuts cost and gives everyone greater clout against the increasingly competitive forces of the global food sector.’
    • ‘In a tight financial climate, universities increasingly want to avoid duplication and inefficiencies to avoid excessive government intervention in their affairs.’
    • ‘The processes used for mass duplication of early gramophone records were remarkably similar to those used throughout the era of analogue disc recording.’
    • ‘Four nutritionists identified related concerns: the lack of a clear referral process and duplication of services.’
    • ‘I know that the thought of extra spending and unnecessary duplication of phone number listings might grate on the minds of those tasked with making sure dollars are spent right.’
    • ‘In some cases, the answer turned out to be a process of duplication and innovation.’
    copying, duplicating, replicating, replication
    View synonyms
    1. 1.1Genetics count noun A DNA segment in a chromosome which is a copy of another segment.
      • ‘In our experiments, we used three strains carrying chromosomal duplications with known endpoints.’
      • ‘Why are there so many segmental duplications in the human genome?’
      • ‘This homolog maps on chromosome 10L and is part of the most recent set of segmental duplications in the maize genome.’
      • ‘Tandem and segmental duplications of resistance genes have frequently been observed in other plants.’
      • ‘The screen that generated these new sc alleles also produced autosomal duplications.’


Late Middle English (used in the mathematical sense ‘multiplication by two’): from Old French, or from Latin duplicatio(n-), from duplicare ‘to double’ (see duplicate).