Submitted by György Chityil ... on Fri, 01/19/2018 - 16:41 Hierarchy: AffixDescription: {{chemistry}} Used in the systematic names of chemical elements, standing for a 1 in the atomic numberNgram: -un-Ngram Text: -un-Source: WiktionaryIssue: 0Wiktionary tag: chemistryNgram Count: 1