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Definition of duplication

duplication

/ˌduːplɪˈkeɪʃən/
du · pli · ca · tion
Plural:duplications
•
Adjective:duplicate
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duplication Lexical Profile

duplication Game Scores & Validity

• noun

1

The action or process of making an exact copy of something, or an instance of doing something a second time unnecessarily.

Example

"Merging the two administrative departments helped eliminate the costly duplication of effort."

2

A type of genetic mutation in which a segment of DNA or a region of a chromosome is copied one or more extra times.

Example

"Gene duplication is widely recognized by evolutionary biologists as a major mechanism for generating new genetic material."

Synonyms
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Antonyms
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• Rhymes for duplication

• Nearby Words

duplex
duplicable
duplicate
duplication
duplicative
duplicator
duplicitous

Word Origin & Etymology

Borrowed in the early 15th century from Old French duplication or directly from Latin duplicationem, a noun of action from the past participle stem of duplicare ('to double'), itself derived from duplex ('twofold').

Cite this Entry

Wordmom. (2026). Definition of Duplication. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/duplication
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