Submitted by György Chityil ... on Fri, 01/19/2018 - 23:26 Hierarchy: NounDescription: {{geology}} A line on a chart joining parts of a stratigraphic unit that have the same thickness; an isopachous lineNgram: isopachNgram Text: isopachSource: WiktionaryIssue: 0Wiktionary tag: geologyNgram Count: 1