[ foh-toh-ree-ak-tuh-vey-shuh n ]
/ ˌfoʊ toʊ riˌæk təˈveɪ ʃən /

noun Biochemistry.

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


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Origin of photoreactivation

1945–50; photo- + reactivation Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Medical definitions for photoreactivation

[ fō′tō-rē-ăk′tə-vāshən ]


The activation by light of something previously inactive or inactivated.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.