We found 30 dictionaries that define the word luminescence:

General (20 matching dictionaries)

1. luminescence: Longman Dictionary of Contemporary English
2. luminescence: Merriam-Webster
3. luminescence: Oxford Learner's Dictionaries
4. luminescence: American Heritage Dictionary of the English Language
5. luminescence: Collins English Dictionary
6. luminescence: Vocabulary.com
7. Luminescence, luminescence: Wordnik
8. luminescence: Cambridge Advanced Learner's Dictionary
9. luminescence: Wiktionary
10. luminescence: Webster's New World College Dictionary, 4th Ed.
11. luminescence: The Wordsmyth English Dictionary-Thesaurus
12. luminescence: Infoplease Dictionary
13. luminescence: Dictionary.com
14. Luminescence (album), Luminescence (disambiguation), Luminescence (journal), Luminescence, Luminescence: Wikipedia, the Free Encyclopedia
15. luminescence: Rhymezone
16. luminescence: FreeDictionary.org
17. luminescence: Mnemonic Dictionary
18. luminescence: TheFreeDictionary.com

Art (1 matching dictionary)

19. Glossary of Stamp Collecting Terms (No longer online)

Computing (1 matching dictionary)

20. luminescence: Encyclopedia

Medicine (5 matching dictionaries)

21. luminescence: Merriam-Webster Medical Dictionary
22. Dorland's Illustrated Medical Dictionary (No longer online)
23. Medical Dictionary (No longer online)
24. online medical dictionary (No longer online)
25. luminescence: Medical dictionary

Science (2 matching dictionaries)

26. Luminescence: Eric Weisstein's World of Physics
27. Luminescence: Extragalactic Astronomy

Tech (1 matching dictionary)

28. Glossary of Meteorology (No longer online)

(Note: See luminescences as well.)

Definitions from Wiktionary ( ) ▸ noun:  (physics) Any emission of light that cannot be attributed merely to the temperature of the emitting body. Similar: glow, photoluminescence, ionoluminescence, sonoluminescence, luminophore, fluorescence, radiophotoluminescence, radiothermoluminescence, thermoluminescence, magnetoluminescence, more... Opposite: darkness, obscurity, dullness, shadow Types: fluorescence, phosphorescence, bioluminescence, electroluminescence, more... Phrases: bacterial luminescence, bio luminescence, Luminescence dating, Photostimulated luminescence, more... Adjectives: blue, green, bacterial, visible, red, strong, yellow, bright, faint, induced, infrared Colors:     neon green,     electric blue,     radiant orchid,     luminous pink,     vibrant turquoise, more... ▸ Words similar to luminescence ▸ Usage examples for luminescence ▸ Idioms related to luminescence ▸ Wikipedia articles (New!) ▸ Popular adjectives describing luminescence ▸ Words that often appear near luminescence ▸ Rhymes of luminescence ▸ Invented words related to luminescence