Definition of mutagen in English:

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Pronunciation: /ˈmyo͞odəjən/


An agent, such as radiation or a chemical substance, that causes genetic mutation.
Example sentences
  • Among the mutagens that have been used to induce mutations, chemical mutagens administered in various ways have become especially popular.
  • The integrity and stability of the genetic material is continuously being threatened by endogenous and exogenous factors such as chemical mutagens and radiation.
  • Cell-culture procedures, chemical mutagens, and radiation all have been applied in what people now refer to as traditional, or conventional, plant breeding for the better part of a century.



Pronunciation: /ˌmyo͞otəˈjenəsəs/
Example sentences
  • We carried out several rounds of mutagenesis for each chromosome arm.
  • He was preeminent in the fields of mutagenesis and radiation biology.
  • We and others have shown that studies of mutagenesis in cultured mammalian cells can help predict carcinogenesis.


Pronunciation: /ˌmyo͞odəˈjenik/
Example sentences
  • This cell line detects a wide variety of mutagenic lesions, including point mutations, deletions and various types of chromosomal aberrations.
  • This suggests a mutagenic source different from germ cell replication.
  • Substances which allow the Salmonella to grow are considered mutagenic.




1940s: from mutation + -gen.

For editors and proofreaders

Syllabification: mu·ta·gen

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