mu·​ta·​gen·​e·​sis | \ ˌmyü-tə-ˈje-nə-səs How to pronounce mutagenesis (audio) \

Definition of mutagenesis

: the occurrence or induction of mutation

Examples of mutagenesis in a Sentence

Recent Examples on the Web To generate the recent enzyme, the researchers took one of the proteins that already rescued the mutant E. coli and subjected it to random mutagenesis. Diana Gitig, Ars Technica, "A randomly generated, totally novel enzyme rescues mutant bacteria," 20 Jan. 2018

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

First Known Use of mutagenesis

1948, in the meaning defined above

History and Etymology for mutagenesis

New Latin

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Time Traveler for mutagenesis

Time Traveler

The first known use of mutagenesis was in 1948

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Statistics for mutagenesis

Cite this Entry

“Mutagenesis.” The Dictionary, Merriam-Webster Inc., Accessed 9 December 2019.

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More Definitions for mutagenesis


mu·​ta·​gen·​e·​sis | \ ˌmyüt-ə-ˈjen-ə-səs How to pronounce mutagenesis (audio) \
plural mutageneses\ -​ˌsēz How to pronounce mutageneses (audio) \

Medical Definition of mutagenesis

: the occurrence or induction of mutation

More from Merriam-Webster on mutagenesis Encyclopedia article about mutagenesis

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contradictory or incongruous words

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