We found 15 dictionaries that define the word open question:

General (9 matching dictionaries)

1. open question: Merriam-Webster
2. open question: Oxford Learner's Dictionaries
3. open question: Collins English Dictionary
4. Open question: Wikipedia, the Free Encyclopedia
5. Open Question: Dictionary of Phrase and Fable (1898)
6. open question: TheFreeDictionary.com
7. open question: Wiktionary

Art (1 matching dictionary)

8. open question: Dictionary of Philosophical Terms and Names

Computing (1 matching dictionary)

9. I T Glossary (No longer online)

Medicine (1 matching dictionary)

10. online medical dictionary (No longer online)

Miscellaneous (1 matching dictionary)

11. A Brief Critical Dictionary of Education (No longer online)

Science (2 matching dictionaries)

12. open question: PlanetMath Encyclopedia
13. open question, open question: Prime

Definitions from Wiktionary (open question) ▸ noun:  Synonym of open problem Phrases: open ended question, open to question, more... ▸ Words similar to open question ▸ Usage examples for open question ▸ Idioms related to open question ▸ Wikipedia articles (New!) ▸ Words that often appear near open question ▸ Rhymes of open question ▸ Invented words related to open question