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duplication

Pronunciation: /djuːplɪˈkeɪʃn/

Definition of duplication

noun

[mass noun]

the action or process of duplicating something:an attempt to avoid unnecessary duplication of effort
[count noun] Genetics a DNA segment in a chromosome which is a copy of another segment.

Origin:

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)