We found 30 dictionaries that define the word heat pump:

General (18 matching dictionaries)

1. heat pump: Merriam-Webster
2. heat pump: Oxford Learner's Dictionaries
3. heat pump: American Heritage Dictionary of the English Language
4. heat pump: Collins English Dictionary
5. heat pump: Vocabulary.com
6. heat-pump: Wordnik
7. heat pump: Wiktionary
8. heat pump: The Wordsmyth English Dictionary-Thesaurus
9. heat pump: Infoplease Dictionary
10. heat pump: Dictionary.com
11. Heat Pump, Heat pump: Wikipedia, the Free Encyclopedia
12. heat pump: Rhymezone
13. heat pump: FreeDictionary.org
14. heat pump: Mnemonic Dictionary
15. heat pump: TheFreeDictionary.com
16. heat pump: Longman Dictionary of Contemporary English

Business (3 matching dictionaries)

17. Construction Term Glossary (No longer online)
18. Heat pump (air source), Heat pump (geothermal), Heat pump: Energy Dictionary
19. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

20. Heat-pump, heat pump: Encyclopedia

Slang (1 matching dictionary)

21. heat pump: Urban Dictionary

Tech (7 matching dictionaries)

22. AUTOMOTIVE TERMS (No longer online)
23. Energy Terms (No longer online)
24. Lake and Water Word Glossary (No longer online)
25. Heat pump: Construction Glossary
26. Glossary of Energy Terms (No longer online)
27. Pool Glossary (No longer online)
28. HEAT PUMP: Power Engineering

(Note: See heat_pumping as well.)

Definitions from Wiktionary (heat pump) ▸ noun:  A device that transfers thermal energy between spaces using a refrigeration cycle, usually between an enclosed space and the outdoors. Similar: heatpump, heat bank, heat sink, heat, hypocaust, hydronics, heatbank, hot water heater, teleheating, GSHP, more... Opposite: cooling system, air conditioner, refrigeration unit Types: air-source, geothermal, water-source, more... Phrases: Air source heat pump, Heat pump and refrigeration cycle, Ground source heat pump, Absorption heat pump, Solar-assisted heat pump, more... Adjectives: water cooler, heating, autoclave, serpentine, propellant, recipient, calefactory, gasfired, overfire, a/c, gas-fired ▸ Words similar to heat pump ▸ Usage examples for heat pump ▸ Idioms related to heat pump ▸ Wikipedia articles (New!) ▸ Words that often appear near heat pump ▸ Rhymes of heat pump ▸ Invented words related to heat pump