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antimutagenic

American  
[an-tee-myoo-tuh-jen-ik, an-tahy-] / ˌæn tiˌmyu təˈdʒɛn ɪk, ˌæn taɪ- /

adjective

Genetics.
  1. capable of reducing the frequency of mutation.


Etymology

Origin of antimutagenic

anti- + mutagenic