We found 17 dictionaries that define the word photocathode:

General (14 matching dictionaries)

1. photocathode: Merriam-Webster
2. photocathode: Oxford Learner's Dictionaries
3. photocathode: Collins English Dictionary
4. photocathode: Vocabulary.com
5. photocathode: Wordnik
6. photocathode: Wiktionary
7. photocathode: Webster's New World College Dictionary, 4th Ed.
8. photocathode: Infoplease Dictionary
9. photocathode: Dictionary.com
10. Photocathode: Wikipedia, the Free Encyclopedia
11. photocathode: Rhymezone
12. photocathode: FreeDictionary.org
13. photocathode: Mnemonic Dictionary
14. photocathode: TheFreeDictionary.com

Computing (1 matching dictionary)

15. photocathode: Encyclopedia

Medicine (1 matching dictionary)

16. photocathode: Merriam-Webster Medical Dictionary

Science (1 matching dictionary)

17. Photocathode: Extragalactic Astronomy

(Note: See photocathodes as well.)

Definitions from Wiktionary (photocathode) ▸ noun:  (physics) A cathode that emits electrons when exposed to light. Similar: cathode, photoelectrode, photoelectret, cathodoluminescence, photoelectron, cathode ray, photocarrier, photofield, photopion, photoelectroactivity, more... Opposite: photoanode, anode Types: cesium, potassium, rubidium, sodium, more... ▸ Words similar to photocathode ▸ Usage examples for photocathode ▸ Idioms related to photocathode ▸ Wikipedia articles (New!) ▸ Popular adjectives describing photocathode ▸ Words that often appear near photocathode ▸ Rhymes of photocathode ▸ Invented words related to photocathode