Submitted by György Chityil ... on Fri, 01/19/2018 - 23:45 Hierarchy: NounDescription: {{context|genetics}} A genetic condition involving the lack of one of the normal chromosomal pairs for a species (2n-2).Ngram: nullisomicNgram Text: nullisomicSource: WiktionaryIssue: 0Wiktionary tag: geneticsNgram Count: 1