Submitted by György Chityil ... on Fri, 01/19/2018 - 20:16 Hierarchy: NounDescription: {{organic chemistry}} Any diol in which the two hydroxy functional groups are attached to the same carbon atom.Ngram: geminal diolNgram Text: geminal diolSource: WiktionaryIssue: 0Wiktionary tag: organic chemistryNgram Count: 2