photoreactivation means reactivation by light. It carries an Arena rating of 1447, earned across 2 head-to-head judged battles.
Among words judged in Lexicurio's Arena, photoreactivation ranks #3,093 of 17,149 for Most Exacting Words, #4,481 of 17,151 for The Improbable, #7,939 of 17,143 for Best Fossil-Poetry Words, #8,237 of 17,127 for Words That Escaped Their Books.
Why “photoreactivation” is a great word
The enzymatic repair of DNA damage, specifically cyclobutane pyrimidine dimers induced by ultraviolet light, through the direct action of light-absorbing photolyase enzymes. Formed within English by compounding; etymons: photo- (combining form from Greek phōs, phōt- meaning 'light') and reactivation (from re- 'again' + activation), the term emerged in mid-20th-century molecular biology. Unlike "nucleotide excision repair," a complex, light-independent surgical procedure performed in cellular darkness, or the broad category of "dark repair," any mending done without this radiant subsidy, photoreactivation is a singular act of clemency granted by the sun itself. It is the photolyase enzyme catching a blue photon, using that captured energy to split the molecular kiss of two fused pyrimidine bases; it is the cell's capacity to read its own scars by daylight; it is the precise reversal of ultraviolet’s signature sin—a biological apology written in light, the rare, gentle proof that not all damage is permanent.
Etymology
From photo- + reactivation.
noun
- reactivation by light
Definitions & examples from Wiktionary (CC BY-SA 3.0).
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