We found 27 dictionaries that define the word illuminance:

General (16 matching dictionaries)

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

Computing (1 matching dictionary)

17. illuminance: Encyclopedia

Medicine (4 matching dictionaries)

18. illuminance: Merriam-Webster Medical Dictionary
19. online medical dictionary (No longer online)
20. Illuminance: Visionary
21. illuminance: Medical dictionary

Science (3 matching dictionaries)

22. Visionary, for the Study of Vision (No longer online)
23. Illuminance: Solar Radiation Resource Terms
24. Fishkeeping glossary (No longer online)

Tech (3 matching dictionaries)

25. illuminance: Lighting Design Glossary
26. Glossary of Meteorology (No longer online)
27. Glossary of Energy Terms (No longer online)

(Note: See illuminances as well.)

Definitions from Wiktionary (illuminance) ▸ noun:  (physics) The luminous flux incident on unit area of a surface; measured in lux or lumens. Similar: illumination, luminance, luminous intensity, lumen, density of light, luminous flux, luminosity, lambert, irradiance, radiance, more... Opposite: darkness, obscurity, dimness, shadow Types: lux, foot-candle, nit, candela, lumen, steradian, more... Phrases: retinal illuminance, more... Adjectives: retinal, average, horizontal, vertical, mean, total, minimum, high, maximum, low, direct ▸ Words similar to illuminance ▸ Usage examples for illuminance ▸ Idioms related to illuminance ▸ Wikipedia articles (New!) ▸ Popular adjectives describing illuminance ▸ Words that often appear near illuminance ▸ Rhymes of illuminance ▸ Invented words related to illuminance