Submitted by György Chityil ... on Sat, 01/20/2018 - 00:48 Hierarchy: NounDescription: {{chemistry|archaic}} A nitrogenous acid obtained as a yellow crystalline substance by the oxidation of quinine.Ngram: quininic acidNgram Text: quininic acidSource: WiktionaryIssue: 0Wiktionary tag: chemistryNgram Count: 2