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photoreactivation

American  
[foh-toh-ree-ak-tuh-vey-shuhn] / ˌfoʊ toʊ riˌæk təˈveɪ ʃən /

noun

Biochemistry.
  1. a process that repairs DNA damaged by ultraviolet light using an enzyme that requires visible light.


Etymology

Origin of photoreactivation

1945–50; photo- + reactivation ( def. )