[ doo-pli-key-shuh n, dyoo- ]
/ ˌdu plɪˈkeɪ ʃən, ˌdyu- /


an act or instance of duplicating.
the state of being duplicated.
Genetics. a type of chromosomal aberration in which a region of the chromosome is repeated.

Origin of duplication

1490–1500; (< Anglo-French) < Latin duplicātiōn- (stem of duplicātiō), equivalent to duplicāt(us) (see duplicate) + -iōn- -ion

OTHER WORDS FROM duplication

non·du·pli·ca·tion, nounpre·du·pli·ca·tion, nounself-du·pli·ca·tion, nounsu·per·du·pli·ca·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for duplication

British Dictionary definitions for duplication

/ (ˌdjuːplɪˈkeɪʃən) /


the act of duplicating or the state of being duplicated
a copy; duplicate
genetics a mutation in which there are two or more copies of a gene or of a segment of a chromosome
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for duplication

[ dōō′plĭ-kāshən ]


The existence or growth into two corresponding parts.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.