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We found 42 dictionaries with English definitions that include the word radium:
Click on the first link on a line below to go directly to a page where "radium" is defined.

General (29 matching dictionaries)

1. radium: Merriam-Webster.com [home, info]
2. radium: Oxford Learner's Dictionaries [home, info]
3. radium: American Heritage Dictionary of the English Language [home, info]
4. radium: Collins English Dictionary [home, info]
5. radium: Vocabulary.com [home, info]
6. radium: Macmillan Dictionary [home, info]
7. Radium, radium: Wordnik [home, info]
8. radium: Cambridge Advanced Learner's Dictionary [home, info]
9. radium: Wiktionary [home, info]
10. radium: Webster's New World College Dictionary, 4th Ed. [home, info]
11. radium: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. radium: Infoplease Dictionary [home, info]
13. radium: Dictionary.com [home, info]
14. radium: Online Etymology Dictionary [home, info]
15. Radium, radium: UltraLingua English Dictionary [home, info]
16. radium: Cambridge Dictionary of American English [home, info]
17. Radium (album), Radium (disambiguation), Radium: Wikipedia, the Free Encyclopedia [home, info]
18. radium: Rhymezone [home, info]
19. radium: Hutchinson's Dictionary of Difficult Words [home, info]
20. Radium: Encarta® Online Encyclopedia, North American Edition [home, info]
21. Radium: 1911 edition of the Encyclopedia Britannica [home, info]
22. radium: Free Dictionary [home, info]
23. radium: Hutchinson Dictionaries [home, info]
24. radium: Mnemonic Dictionary [home, info]
25. radium: WordNet 1.7 Vocabulary Helper [home, info]
26. radium: LookWAYup Translating Dictionary/Thesaurus [home, info]
27. radium: Dictionary/thesaurus [home, info]

Computing (2 matching dictionaries)

28. Radium (Ra): Encyclopedia [home, info]
29. radium: Encyclopedia [home, info]

Medicine (5 matching dictionaries)

30. Radium: MedTerms.com Medical Dictionary [home, info]
31. Radium: Medical Dictionary [home, info]
32. radium: online medical dictionary [home, info]
33. Radium (Ra), radium: Medical dictionary [home, info]
34. Radium: Drug Medical Dictionary [home, info]

Science (2 matching dictionaries)

35. Radium (Ra): NRC Glossary of Nuclear Terms -- [home, info]
36. Radium, radium: WebElements Periodic Table of the Elements [home, info]

Slang (1 matching dictionary)

37. radium: Urban Dictionary [home, info]

Tech (3 matching dictionaries)

38. Radium: Explosives [home, info]
39. Radium: Textile [home, info]
40. Radium: Nuclear Terms [home, info]

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (radium) ▸ noun:  an intensely radioactive metallic element that occurs in minute amounts in uranium ores ▸ Word origin ▸ Words similar to radium ▸ Usage examples for radium ▸ Idioms related to radium (New!) ▸ Popular adjectives describing radium ▸ Words that often appear near radium ▸ Rhymes of radium ▸ Invented words related to radium