We found 19 dictionaries that define the word alpha ray:

General (13 matching dictionaries)

1. alpha ray: Merriam-Webster
2. alpha ray: American Heritage Dictionary of the English Language
3. alpha ray: Collins English Dictionary
4. alpha ray: Vocabulary.com
5. alpha ray: Wiktionary
6. alpha ray: The Wordsmyth English Dictionary-Thesaurus
7. alpha ray: Infoplease Dictionary
8. alpha ray: Dictionary.com
9. Alpha ray: Wikipedia, the Free Encyclopedia
10. alpha ray: Rhymezone
11. alpha ray: FreeDictionary.org
12. alpha ray: Mnemonic Dictionary
13. alpha ray: TheFreeDictionary.com

Computing (1 matching dictionary)

14. alpha ray: Encyclopedia

Medicine (3 matching dictionaries)

15. alpha ray: Merriam-Webster Medical Dictionary
16. online medical dictionary (No longer online)
17. alpha ray: Medical dictionary

Science (1 matching dictionary)

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

Tech (1 matching dictionary)

19. Glossary of Meteorology (No longer online)

(Note: See alpha_rays as well.)

Definitions from Wiktionary (alpha ray) ▸ noun:  A stream of alpha particles. Similar: alpha radiation, α-particle, alpha emission, beta ray, alpha particle, alpha decay, alpha emitter, delta ray, beta, radioactivity, more... Opposite: betray, gammray, X-ray Types: alphparticle, more... Adjectives: gray, beta, coulombic, jet, high-energy, rad, banana, hole, molar, x-ray, hot ▸ Words similar to alpha ray ▸ Usage examples for alpha ray ▸ Idioms related to alpha ray ▸ Wikipedia articles (New!) ▸ Words that often appear near alpha ray ▸ Rhymes of alpha ray ▸ Invented words related to alpha ray