Submitted by György Chityil ... on Fri, 01/19/2018 - 23:54 Hierarchy: NounDescription: {{alternative spelling of|photodegradation}} (Degradation by means of radiant energy as light.)Ngram: photo-degradationNgram Text: photo-degradationSource: WiktionaryIssue: 0Wiktionary tag: alternative spelling ofNgram Count: 1
