We found 19 dictionaries that define the word X-ray tube:

General (14 matching dictionaries)

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

Computing (1 matching dictionary)

15. x-ray tube: Encyclopedia

Medicine (3 matching dictionaries)

16. X-ray tube: Merriam-Webster Medical Dictionary
17. Dorland's Illustrated Medical Dictionary (No longer online)
18. x-ray tube: Medical dictionary

Science (1 matching dictionary)

19. General Chemistry Online (No longer online)

(Note: See x-ray_tubes as well.)

Definitions from WordNet (X-ray tube) ▸ noun:  a vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays Similar: electroexplosive, electric gun, railgun, arclight, mark, atom smasher, radiological weapon, detonator, ray gun, blast lamp, more... Opposite: detector, sensor, receiver, monitor, imaging plate ▸ Words similar to X-ray tube ▸ Usage examples for X-ray tube ▸ Idioms related to X-ray tube ▸ Wikipedia articles (New!) ▸ Words that often appear near X-ray tube ▸ Rhymes of X-ray tube ▸ Invented words related to X-ray tube