We found 19 dictionaries that define the word cathode ray:

General (14 matching dictionaries)

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

Computing (1 matching dictionary)

15. Cathode-ray, cathode ray: Encyclopedia

Medicine (2 matching dictionaries)

16. online medical dictionary (No longer online)
17. Cathode-ray, cathode ray: Medical dictionary

Science (1 matching dictionary)

18. Cathode Ray: Eric Weisstein's World of Physics

Tech (1 matching dictionary)

19. AUTOMOTIVE TERMS (No longer online)

(Note: See cathode_rays as well.)

Definitions from Wiktionary (cathode ray) ▸ noun:  (electricity) A ray consisting of a stream of electrons in a vacuum tube that are emitted by the cathode and accelerated towards the anode by an electric field. Similar: cathode, electron beam, photocathode, derma ray, delta ray, cosmic ray, beta ray, alpha ray, raypath, beam, more... Opposite: anode, positive electrode Phrases: cathode ray tube, cathode ray oscilloscope, cathode ray tubes, cathode ray oscillograph, cathode beam, cathode ray, more... ▸ Words similar to cathode ray ▸ Usage examples for cathode ray ▸ Idioms related to cathode ray ▸ Wikipedia articles (New!) ▸ Words that often appear near cathode ray ▸ Rhymes of cathode ray ▸ Invented words related to cathode ray