du·​pli·​ca·​tion | \ ˌdü-pli-ˈkā-shən How to pronounce duplication (audio) also ˌdyü- \

Definition of duplication

1a : the act or process of duplicating
b : the quality or state of being duplicated
3 : a part of a chromosome in which the genetic material is repeated also : the process of forming a duplication

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Examples of duplication in a Sentence

He sent the manuscript out for duplication. Please eliminate duplication when combining the lists.
Recent Examples on the Web This control is critical: Too little MECP2 protein leads to Rett, but too much results in MECP2 duplication syndrome, a condition that also causes intellectual disability, seizures, and autism traits. Lydia Denworth, Science | AAAS, "Is gene therapy ready to treat some forms of autism?," 14 Oct. 2020 Computer duplication is only one way that the Concorde is planned as the world's safest aircraft. J. A. Maxtone Graham, Popular Mechanics, "You, Too, Can Break the Sound Barrier," 24 Sep. 2020 The forum is encouraging coordination of efforts to reduce duplication, says Jeremy Grimshaw, a leader of COVID-END and a scientist at the Ottawa Hospital Research Institute. Jeffrey Brainard, Science | AAAS, "Researchers face hurdles to evaluate, synthesize COVID-19 evidence at top speed," 8 Oct. 2020 Now, the new system can immediately flag similar data, stop the second society from entering it and flag it back to them so that the data can be immediately cleaned up and duplication is avoided, Oron tells Billboard in a phone interview. Ed Christman, Billboard, "CISAC Completes Upgrade of Music Coding System," 24 Sep. 2020 An autonomous Europe without the guiding hand of Washington, however, would be prone to dithering, duplication, and drift — and vulnerable to division by a revanchist Russia and emerging China. Peter Rough, National Review, "The Bull in Europe’s China Shop," 27 Sep. 2020 In short, the reason for the duplication is a disconnect between candidate campaigns, third-party groups, county elections officials and state elections officials. Andrew J. Tobias, cleveland, "Have questions about your Ohio absentee ballot application? Here’s what you need to know.," 11 Sep. 2020 Their results suggest that even early animals had relatively complex genomes because of an unprecedented spurt of gene duplication early in life’s history. Quanta Magazine, "By Losing Genes, Life Often Evolved More Complexity," 1 Sep. 2020 The Golf N' Stuff date montage scene is almost a shot for shot duplication of the original scene from The Karate Kid. Kristen Baldwin, EW.com, "12 Karate Kid Easter eggs in Cobra Kai and the stories behind them," 4 Sep. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'duplication.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of duplication

15th century, in the meaning defined at sense 1a

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Time Traveler for duplication

Time Traveler

The first known use of duplication was in the 15th century

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Statistics for duplication

Last Updated

26 Oct 2020

Cite this Entry

“Duplication.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duplication. Accessed 27 Oct. 2020.

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More Definitions for duplication


How to pronounce duplication (audio)

English Language Learners Definition of duplication

: the act or process of copying something
: the state of containing copies of something or being a copy of something


du·​pli·​ca·​tion | \ ˌdü-pli-ˈkā-shən How to pronounce duplication (audio) , ˌdyü- \

Kids Definition of duplication

1 : the act or process of copying He sent the paper out for duplication.
2 : the state of being copied Make sure there's no duplication on the invitation list.


du·​pli·​ca·​tion | \ ˌd(y)ü-pli-ˈkā-shən How to pronounce duplication (audio) \

Medical Definition of duplication

1 : the act or process of duplicating : the quality or state of being duplicated
2 : a part of a chromosome in which the genetic material is repeated also : the process of forming a duplication

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du·​pli·​ca·​tion | \ ˌdü-pli-ˈkā-shən, ˌdyü- How to pronounce duplication (audio) \

Legal Definition of duplication

: the act, process, or result of duplicating

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