We found 48 dictionaries that define the word neutron:

General (23 matching dictionaries)

1. neutron: Longman Dictionary of Contemporary English
2. neutron: Merriam-Webster
3. neutron: Oxford Learner's Dictionaries
4. neutron: American Heritage Dictionary of the English Language
5. neutron: Collins English Dictionary
6. neutron: Vocabulary.com
7. Neutron, neutron: Wordnik
8. neutron: Cambridge Advanced Learner's Dictionary
9. neutron: Wiktionary
10. neutron: Webster's New World College Dictionary, 4th Ed.
11. neutron: The Wordsmyth English Dictionary-Thesaurus
12. neutron: Infoplease Dictionary
13. neutron: Dictionary.com
14. neutron: Online Etymology Dictionary
15. neutron: Cambridge Essential American English Dictionary
16. Neutron (DC Comics), Neutron (Linus), Neutron (Marvel Comics), Neutron (disambiguation), Neutron (game), Neutron: Wikipedia, the Free Encyclopedia
17. neutron: Rhymezone
18. neutron: FreeDictionary.org
19. neutron: Mnemonic Dictionary
20. neutron: TheFreeDictionary.com
21. Neutron (comics): Wikipedia, the Free Encyclopedia

Business (1 matching dictionary)

22. Construction Term Glossary (No longer online)

Computing (1 matching dictionary)

23. neutron: Encyclopedia

Medicine (4 matching dictionaries)

24. neutron: Merriam-Webster Medical Dictionary
25. Dorland's Illustrated Medical Dictionary (No longer online)
26. online medical dictionary (No longer online)
27. neutron: Medical dictionary

Science (11 matching dictionaries)

28. Electrochemistry Dictionary (No longer online)
29. From Stargazers to Starships Glossary (No longer online)
30. Chemistry Dictionary (No longer online)
31. Neutron: Eric Weisstein's World of Physics
32. Illustrated Glossary of Geologic Terms (No longer online)
33. Imagine the Universe! Dictionary (No longer online)
34. Neutron: Extragalactic Astronomy
35. Neutron: NRC Glossary of Nuclear Terms --
36. neutron: UNCChem Glossary
37. Accelerator Glossary (No longer online)
38. NEUTRON: Zoom Astronomy Glossary

Slang (1 matching dictionary)

39. neutron: Urban Dictionary

Tech (7 matching dictionaries)

40. High-Energy Astrophysics (No longer online)
41. neutron: Electronics
42. AUTOMOTIVE TERMS (No longer online)
43. Glossary of Meteorology (No longer online)
44. Explosives (No longer online)
45. JPL Terms (No longer online)
46. Nuclear Terms (No longer online)

(Note: See neutronic as well.)

Definitions from Wiktionary ( ) ▸ noun:  (physics) A subatomic particle forming part of the nucleus of an atom and having no charge; it is a combination of an up quark and two down quarks. Similar: antineutron, quasineutron, proton, neutronium, neutrino, dineutron, down quark, muon neutrino, antineutrino, up quark, more... Opposite: proton, charged, ion, cation, anion Types: thermal, epithermal, fast, more... Phrases: neutron star, neutron scattering, Neutron activation, neutron stars, neutron flux, more... Adjectives: thermal, fast, slow, free, single, inelastic, extra, odd, high, scattered, last Colors:     charcoal,     slate gray,     gunmetal,     steel blue,     midnight blue, more... ▸ Word origin ▸ Words similar to neutron ▸ Usage examples for neutron ▸ Idioms related to neutron ▸ Wikipedia articles (New!) ▸ Popular adjectives describing neutron ▸ Words that often appear near neutron ▸ Rhymes of neutron ▸ Invented words related to neutron