Submitted by György Chityil ... on Fri, 01/19/2018 - 21:51 Hierarchy: NounDescription: {{cartography|navigation}} A line of equal or constant magnetic declination on a chart; an isogonic line.Ngram: isogonNgram Text: isogonSource: WiktionaryIssue: 0Wiktionary tag: cartographynavigationNgram Count: 1
