We found 27 dictionaries that define the word solar constant:

General (15 matching dictionaries)

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

Business (1 matching dictionary)

16. Solar constant: Energy Dictionary

Computing (1 matching dictionary)

17. solar constant: Encyclopedia

Science (4 matching dictionaries)

18. Solar Constant: Solar Radiation Resource Terms
19. Solar Constant: Eric Weisstein's World of Astronomy
20. Solar Constant: Extragalactic Astronomy
21. SOLAR CONSTANT: Zoom Astronomy Glossary

Tech (6 matching dictionaries)

22. solar constant: Glossary of Related Solar Power Terms
23. AUTOMOTIVE TERMS (No longer online)
24. solar constant: Solar Electric Glossary
25. Glossary of Meteorology (No longer online)
26. Glossary of Energy Terms (No longer online)
27. SOLAR-TERRESTRIAL TERMS (No longer online)

(Note: See solar_constants as well.)

Definitions from Wiktionary (solar constant) ▸ noun:  The amount of incoming solar radiation per unit area, measured on the outer surface of Earth's atmosphere, in a plane perpendicular to the rays. Similar: insolation, solar radiation, solar luminosity, solar mass, solar, solar energy, sunlight, steradiancy, solar energetic particle, solar power, more... Opposite: lunar variable ▸ Words similar to solar constant ▸ Usage examples for solar constant ▸ Idioms related to solar constant ▸ Wikipedia articles (New!) ▸ Words that often appear near solar constant ▸ Rhymes of solar constant ▸ Invented words related to solar constant