Submitted by György Chityil ... on Fri, 01/19/2018 - 20:34 Hierarchy: NounDescription: {{organic chemistry|especially in combination}} Any aryl derivative of a methylene groupNgram: arylideneNgram Text: arylideneSource: WiktionaryIssue: 0Wiktionary tag: organic chemistryespecially in combinationNgram Count: 1