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Definitions

American Heritage® Dictionary of the English Language, Fourth Edition

  1. n. An agent, such as a chemical, ultraviolet light, or a radioactive element, that can induce or increase the frequency of mutation in an organism.

Wiktionary

  1. n. any agent or substance that can cause genetic mutation

GNU Webster's 1913

  1. n. A chemical compound or other external influence (such as ionizing radiation) which causes mutations{3}.

WordNet 3.0

  1. n. any agent (physical or environmental) that can induce a genetic mutation or can increase the rate of mutation

Etymologies

  1. muta(tion) + -gen.

Examples

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‘mutagen’ has been looked up 1129 times, added to 6 lists, and has a Scrabble score of 10.