Etymology

photolysis

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Today it means: Any chemical reaction in which a compound is decomposed after absorbing a photon. Full definition →

Ancient Greek φωτ-
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The story

  1. Ancient Greek · derived fromφωτ-
  2. English todayphotolysis

From Ancient Greek φωτ- (phōt-), root of φῶς (phôs, “light”) + λύσις (lúsis, “decomposition”). By surface analysis, photo- + -lysis.

Etymology from Wiktionary, CC BY-SA 4.0.