Submitted by György Chityil ... on Fri, 01/19/2018 - 20:43 Hierarchy: NounDescription: {{organic chemistry|especially in combination}} Two naphthyl radicals in a compoundNgram: dinaphthylNgram Text: dinaphthylSource: WiktionaryIssue: 0Wiktionary tag: organic chemistryespecially in combinationNgram Count: 1