Submitted by György Chityil ... on Fri, 01/19/2018 - 23:17 Hierarchy: NounDescription: {{astronomy|physics}} The three-dimensional analysis of the structure of the sun, especially of convection currentsNgram: heliotomographyNgram Text: heliotomographySource: WiktionaryIssue: 0Wiktionary tag: astronomyphysicsNgram Count: 1