Submitted by György Chityil ... on Sat, 01/20/2018 - 01:10 Hierarchy: NounDescription: {{organic chemistry|especially in combination}} Any compound having four ketonic carbonyl groupsNgram: tetroneNgram Text: tetroneSource: WiktionaryIssue: 0Wiktionary tag: organic chemistryespecially in combinationNgram Count: 1
