Submitted by György Chityil ... on Sat, 01/20/2018 - 01:20 Hierarchy: NounDescription: {{organic chemistry}} Any of a class of quaternary ammonium salts derived from 4,4'-bipyridineNgram: viologenNgram Text: viologenSource: WiktionaryIssue: 0Wiktionary tag: organic chemistryNgram Count: 1
