Submitted by György Chityil ... on Sat, 01/20/2018 - 00:57 Hierarchy: NounDescription: {{chemistry}} The oxoacid H<sub>2</sub>SeO<sub>3</sub>; the selenium analogue of sulfurous acid.Ngram: selenous acidNgram Text: selenous acidSource: WiktionaryIssue: 0Wiktionary tag: chemistryNgram Count: 2