We found 19 dictionaries that define the word heliopause:

General (14 matching dictionaries)

1. heliopause: Oxford Learner's Dictionaries
2. heliopause: American Heritage Dictionary of the English Language
3. heliopause: Collins English Dictionary
4. heliopause: Vocabulary.com
5. heliopause: Wordnik
6. heliopause: Wiktionary
7. heliopause: Webster's New World College Dictionary, 4th Ed.
8. heliopause: Infoplease Dictionary
9. heliopause: Dictionary.com
10. Heliopause (album), Heliopause (astronomy), Heliopause (band), Heliopause: Wikipedia, the Free Encyclopedia
11. heliopause: Rhymezone
12. heliopause: FreeDictionary.org
13. heliopause: Mnemonic Dictionary
14. heliopause: TheFreeDictionary.com

Computing (1 matching dictionary)

15. heliopause: Encyclopedia

Science (2 matching dictionaries)

16. heliopause: Nine Planets Glossary
17. HELIOPAUSE: Zoom Astronomy Glossary

Tech (2 matching dictionaries)

18. Basics of Space Flight Glossary (No longer online)
19. SOLAR-TERRESTRIAL TERMS (No longer online)

(Note: See heliopauses as well.)

Definitions from Wiktionary (heliopause) ▸ noun:  (astronomy) The boundary of heliosphere where the Sun's solar wind is stopped by the interstellar medium. Similar: heliosphere, heliosheath, helionaut, Helios, astrosheath, heliologist, photoheliography, helium star, hemisphære, photoheliograph, more... Opposite: bow shock, termination shock, heliosheath ▸ Words similar to heliopause ▸ Usage examples for heliopause ▸ Idioms related to heliopause ▸ Wikipedia articles (New!) ▸ Popular adjectives describing heliopause ▸ Words that often appear near heliopause ▸ Rhymes of heliopause ▸ Invented words related to heliopause