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We found 38 dictionaries with English definitions that include the word alpha particle:
Click on the first link on a line below to go directly to a page where "alpha particle" is defined.

General (23 matching dictionaries)

1. alpha particle: Merriam-Webster.com [home, info]
2. alpha particle: Oxford Dictionaries [home, info]
3. alpha particle: American Heritage Dictionary of the English Language [home, info]
4. alpha particle: Collins English Dictionary [home, info]
5. alpha particle: Vocabulary.com [home, info]
6. alpha particle: Macmillan Dictionary [home, info]
7. alpha particle: Wordnik [home, info]
8. alpha particle: Cambridge Advanced Learner's Dictionary [home, info]
9. alpha particle: Wiktionary [home, info]
10. alpha particle: The Wordsmyth English Dictionary-Thesaurus [home, info]
11. alpha particle: Infoplease Dictionary [home, info]
12. alpha particle: Dictionary.com [home, info]
13. alpha particle: UltraLingua English Dictionary [home, info]
14. Alpha-particle, Alpha particle: Wikipedia, the Free Encyclopedia [home, info]
15. alpha particle: Rhymezone [home, info]
16. alpha particle: Stammtisch Beau Fleuve Acronyms [home, info]
17. alpha particle: Free Dictionary [home, info]
18. alpha particle: Mnemonic Dictionary [home, info]
19. alpha particle: WordNet 1.7 Vocabulary Helper [home, info]
20. alpha particle: LookWAYup Translating Dictionary/Thesaurus [home, info]
21. alpha particle: Dictionary/thesaurus [home, info]

Business (1 matching dictionary)

22. alpha particle: Legal dictionary [home, info]

Computing (2 matching dictionaries)

23. alpha particle: Free On-line Dictionary of Computing [home, info]
24. alpha particle: Encyclopedia [home, info]

Medicine (4 matching dictionaries)

25. Alpha particle, Particle, alpha: MedTerms.com Medical Dictionary [home, info]
26. alpha particle: online medical dictionary [home, info]
27. alpha particle: Medical dictionary [home, info]
28. Alpha particle, Particle, alpha: Drug Medical Dictionary [home, info]

Science (5 matching dictionaries)

29. Alpha (a) Particle, Alpha Particle: Chemistry Dictionary [home, info]
30. Alpha Particle: Eric Weisstein's World of Physics [home, info]
31. alpha particle: General Chemistry Online [home, info]
32. Alpha particle: NRC Glossary of Nuclear Terms -- [home, info]

Tech (3 matching dictionaries)

34. alpha particle: Glossary of Meteorology [home, info]
35. Alpha Particle: Explosives [home, info]
36. Alpha particle: Nuclear Terms [home, info]

(Note: See alpha_particles for more definitions.)

Quick definitions from WordNet (alpha particle) ▸ noun:  a positively charged particle that is the nucleus of the helium atom; emitted from natural or radioactive isotopes ▸ Also see alpha_particles ▸ Words similar to alpha particle ▸ Usage examples for alpha particle ▸ Words that often appear near alpha particle ▸ Rhymes of alpha particle ▸ Invented words related to alpha particle