Submitted by György Chityil ... on Fri, 01/19/2018 - 17:04 Hierarchy: NounDescription: {{context|nuclear physics}} A unit of surface area equal to 10<sup>-28</sup> square metres.Ngram: barnNgram Text: barnSource: WiktionaryIssue: 0Wiktionary tag: nuclear physicsNgram Count: 1Wikokit WikiText ID: 306134