We found 23 dictionaries that define the word ball valve:

General (15 matching dictionaries)

1. ball valve: Merriam-Webster
2. ball valve: Oxford Learner's Dictionaries
3. ball valve: American Heritage Dictionary of the English Language
4. ball valve: Collins English Dictionary
5. ball valve: Vocabulary.com
6. ball valve: Wordnik
7. ball valve: Wiktionary
8. ball valve: Infoplease Dictionary
9. Ball valve, ball valve: Dictionary.com
10. Ball valve: Wikipedia, the Free Encyclopedia
11. ball valve: Rhymezone
12. ball valve: FreeDictionary.org
13. ball valve: Mnemonic Dictionary
14. ball valve: TheFreeDictionary.com
15. ball valve: Merriam-Webster

Business (1 matching dictionary)

16. Construction Term Glossary (No longer online)

Computing (1 matching dictionary)

17. ball valve: Encyclopedia

Medicine (2 matching dictionaries)

18. online medical dictionary (No longer online)
19. ball valve: Medical dictionary

Tech (4 matching dictionaries)

20. AUTOMOTIVE TERMS (No longer online)
21. Glossary of Landscape Irrigation Terms (No longer online)
22. Lake and Water Word Glossary (No longer online)
23. Pool Glossary (No longer online)

(Note: See ball_valves as well.)

Definitions from Wiktionary (ball valve) ▸ noun:  A contrivance by which a ball, placed in a circular cup with a hole in its bottom, operates as a valve. ▸ noun:  (proscribed) A ballcock valve. Similar: leaf valve, gate valve, butterfly valve, swing check valve, spring valve, diverter, slide valve, D valve, turncock, reversing valve, more... Phrases: ball valve action, caged ball valve, ball check valve, ball valve thrombus, more... ▸ Words similar to ball valve ▸ Usage examples for ball valve ▸ Idioms related to ball valve ▸ Wikipedia articles (New!) ▸ Words that often appear near ball valve ▸ Rhymes of ball valve ▸ Invented words related to ball valve