We found 12 dictionaries that define the word expansion valve:

General (6 matching dictionaries)

1. expansion valve: Merriam-Webster
2. expansion-valve, expansion valve: Wordnik
3. Expansion valve: Dictionary.com
4. Expansion valve (steam engine), Expansion valve: Wikipedia, the Free Encyclopedia
5. expansion valve: FreeDictionary.org
6. Expansion valve: TheFreeDictionary.com

Business (1 matching dictionary)

7. Construction Term Glossary (No longer online)

Computing (1 matching dictionary)

8. expansion valve: Encyclopedia

Tech (4 matching dictionaries)

9. AUTOMOTIVE TERMS (No longer online)
10. Glossary of Energy Terms (No longer online)
11. EXPANSION VALVE, Expansion valve: Power Engineering

Definitions from Wikipedia (Expansion valve) ▸ noun:  An expansion valve is a device in steam engine valve gear that improves engine efficiency. Phrases: automatic expansion valve, thermostatic expansion valve, Thermal expansion valve, more... ▸ Words similar to expansion valve ▸ Usage examples for expansion valve ▸ Idioms related to expansion valve ▸ Wikipedia articles (New!) ▸ Words that often appear near expansion valve ▸ Rhymes of expansion valve ▸ Invented words related to expansion valve