Submitted by György Chityil ... on Fri, 01/19/2018 - 20:34 Hierarchy: NounDescription: {{astronomy}} The boundary of heliosphere where the Sun's solar wind is stopped by the interstellar medium.Ngram: heliopauseNgram Text: heliopauseSource: WiktionaryIssue: 0Wiktionary tag: astronomyNgram Count: 1