Submitted by György Chityil ... on Fri, 01/19/2018 - 20:30 Hierarchy: NounDescription: {{organic chemistry|especially in combination}} Any aromatic derivative of a ferrocene ion or radicalNgram: arenoceniumNgram Text: arenoceniumSource: WiktionaryIssue: 0Wiktionary tag: organic chemistryespecially in combinationNgram Count: 1