What does duplication mean in English?

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duplication Meaning, Definition, Pronunciation, Grammar & Synonyms❤️

0 the act or process of making an exact copy of something:
- Duplication of certain chromosomes can lead to abnormalities.
- Organize teams to tackle complex problems and avoid duplication.
1 the practice of doing the same thing more than once, or having more than one person or thing to do the same task, when this is not necessary:
- As a result of the merger, there could be duplication among the two companies' administrative staffs.
- There was enormous duplication of effort with each area having its own personnel team.
- duplication of functions/roles/services
- avoid/eliminate/reduce duplication
2 the practice of making an exact copy of something, especially when this is illegal:
- The defendants never denied the illegal duplication, but claimed they had tried to obtain copyrights.

Even so beautiful a process as that for the duplication of phonograph records was solemnly held by a Federal judge as lacking invention—as being obvious to any one.
The danger of an exact duplication is quite generally understood by persons having any knowledge of forgery, and is therefore avoided.
The duplication of the seals used, composed of wire and lead, is easy, and the opening of locks scarcely less so.
The use of standard patterns, uniformity in design and duplication of parts was applied, not only to the rolling stock, but to the railroad as well, wherever it was possible.
147 mice heterozygous for a t haplotype can produce recombinant chromosomes with duplications and deletions.
We have performed more detailed fluorescent in situ hybridization analysis on the two patients with duplications, to locate the breakpoints more precisely.
We can avoid this problem by slightly changing the typing rules to disallow such unnecessary duplications.
On the other hand, there are some duplications that seem unjustified.