duplication

From Middle English duplicacioun, from Middle French duplication, from Late Latin duplicātiō, duplicātiōnem, from Latin duplicō.^[1] Morphologically duplicate +‎ -ion.

• (UK) IPA^(key): /djuː.plɪˈkeɪ.ʃən/, /dʒuː.plɪˈkeɪ.ʃən/

• Audio (Southern England):

  (file)

• (US) IPA^(key): /d(j)u.plɪˈkeɪ.ʃən/
• Rhymes: -eɪʃən

duplication (countable and uncountable, plural duplications)

1. The act of duplicating.
   • 2021 July 14, Pip Dunn, “Woodhead 40 years on: time to let go”, in RAIL, number 935, page 39:

     Another argument for closing Woodhead was simply one of route duplication, and this was the main reason put forward by BR at the time.

2. A duplicate.
   • 1916 March, Edgar Montgomery Cullen, “The Decline of Personal Liberty in America”, in Asa W. Russell, editor, Case and Comment: The Lawyer’s Magazine, volume 22, number 10, Rochester, N.Y.: Lawyers Co-operative Publishing Company, →ISSN, →OCLC, page 820, column 1:

     Counting crimes as given in the index to the Penal Code, their number is nearly twice as great as that stated, but as some are only duplications I have reduced my estimate that it may be well within the limits of the fact.

   • 1949 January 17, “Essential Oil Association Told Trade Not Normal”, in Oil, Paint and Drug Reporter, volume 155, number 3, New York, N.Y., →OCLC, page 7, column 4:

     Registration of trademarks had been revised and a unit had been set up to clear up duplications.

   • 2008, Dan E[lijah] Perry, “Twenty-seven Months in Blue Heaven”, in More Than I Deserve, [Chapel Hill, N.C.]: Chapel Hill Press, →ISBN, part I (Recollections and Memories), page 223:

     Duplications were made by carbon paper. If you had a pleading to be sent to three parties, you typed an original and four carbon copies, including an office copy.

3. A folding over; a fold.
4. (biology) The act or process of dividing by natural growth or spontaneous action.

   duplication of cartilage cells

5. (genetics) The act of copying a nucleotide sequence from one chromosome to another.
6. (genetics) A nucleotide sequence copied through such a process.

• (act of duplicating): See also Thesaurus:duplication

Inherited from Middle French, from Late Latin duplicātiōnem, from Latin duplicō.

• Audio:

  (file)

duplication f (plural duplications)

1. duplication

• dupliquer

• “duplication”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.