We found 20 dictionaries that define the word axion:

General (12 matching dictionaries)

1. axion: Merriam-Webster
2. axion: Oxford Learner's Dictionaries
3. axion: American Heritage Dictionary of the English Language
4. axion: Collins English Dictionary
5. Axion: Wordnik
6. axion: Wiktionary
7. axion: Webster's New World College Dictionary, 4th Ed.
8. axion: Infoplease Dictionary
9. axion: Dictionary.com
10. Axion (Greek mythology), Axion (disambiguation), Axion (mythology), Axion: Wikipedia, the Free Encyclopedia
11. axion: TheFreeDictionary.com
12. axion: Merriam-Webster

Computing (2 matching dictionaries)

13. Webopedia (No longer online)
14. axion: Encyclopedia

Medicine (3 matching dictionaries)

15. Axion: MedFriendly Glossary
16. online medical dictionary (No longer online)
17. axion: Medical dictionary

Science (2 matching dictionaries)

18. Axion: Eric Weisstein's World of Physics
19. Axion: Extragalactic Astronomy

Slang (1 matching dictionary)

20. axion: Urban Dictionary

Definitions from Wiktionary (axion) ▸ noun:  (physics) A hypothetical subatomic particle postulated to resolve certain symmetry problems concerning the strong nuclear force. Similar: axizilla, axino, axiverse, axiodilaton, saxion, aikyon, acceleron, axiogenesis, antiomega, dyon, more... Types: axino, axion-like particle, axion-like field, more... Phrases: Axion Estin, Axion Dark Matter Experiment, more... Adjectives: invisible, standard, hadronic, harmless, light, independent ▸ Words similar to axion ▸ Usage examples for axion ▸ Idioms related to axion ▸ Wikipedia articles (New!) ▸ Popular adjectives describing axion ▸ Words that often appear near axion ▸ Rhymes of axion ▸ Invented words related to axion