Submitted by György Chityil ... on Fri, 01/19/2018 - 23:54 Hierarchy: NounDescription: {{genetics}} A map showing how much DNA separates two genes, measured in base pairs, as opposed to a genetic map.Ngram: physical mapNgram Text: physical mapSource: WiktionaryIssue: 0Wiktionary tag: geneticsNgram Count: 2