Submitted by György Chityil ... on Sat, 01/20/2018 - 01:10 Hierarchy: NounDescription: {{physics}} A quantum number of quarks & hadrons, determined by the number(s) of top quarks & antiquarks present. Symbol ''T''.Ngram: topnessNgram Text: topnessSource: WiktionaryIssue: 0Wiktionary tag: physicsNgram Count: 1