Definition of duplication in English:



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

    ‘an attempt to avoid unnecessary duplication of effort’
    • ‘The sequence of bases for genes of fundamental processes such as DNA duplication and respiration are almost the same in all cells.’
    • ‘That would simply lead to a proliferation of bodies, unnecessary duplication of costs and effort, and coordination problems.’
    • ‘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.’
    • ‘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.’
    • ‘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.’
    • ‘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.’
    • ‘Good progress has been made in efforts to cut out duplication and also take off the names of those since found safe and well.’
    • ‘In a tight financial climate, universities increasingly want to avoid duplication and inefficiencies to avoid excessive government intervention in their affairs.’
    • ‘Now, the idea there, as I understand it, is to avoid unnecessary duplication between submissions.’
    • ‘The process of duplication ensures that at least one copy of your information is available in the event the primary copy is disrupted.’
    • ‘This avoids duplication, cuts cost and gives everyone greater clout against the increasingly competitive forces of the global food sector.’
    • ‘All parties were permitted to be represented at the various phases in a manner designed to avoid unnecessary duplication.’
    • ‘In this manner the brain avoids duplication of function.’
    • ‘Four nutritionists identified related concerns: the lack of a clear referral process and duplication of services.’
    • ‘Scale free networks can be explained through the simple process of duplication and preferential attachment.’
    • ‘Coordination of clinical trials throughout Europe could greatly enhance the potential of new investment in this area and would avoid duplication of effort.’
    • ‘The processes used for mass duplication of early gramophone records were remarkably similar to those used throughout the era of analogue disc recording.’
    • ‘In some cases, the answer turned out to be a process of duplication and innovation.’
    • ‘Mechanisms are clearly needed for sharing of data, archiving of all relevant findings whether positive or negative, and avoiding duplication of effort.’
    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.’
      • ‘This homolog maps on chromosome 10L and is part of the most recent set of segmental duplications in the maize genome.’
      • ‘The screen that generated these new sc alleles also produced autosomal duplications.’
      • ‘Tandem and segmental duplications of resistance genes have frequently been observed in other plants.’
      • ‘Why are there so many segmental duplications in the human genome?’


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).