出典:Wiktionary
出典:『Wiktionary』 (2026/04/24 23:44 UTC 版)
| Chemical element | ||||||||
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| Ra Atomic number 88 radium |
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| Previous: ← francium (Fr) | ||||||||
| Next: actinium (Ac) → | ||||||||
| English Wikipedia article on Radium |
Borrowed from French radium, from rad(ioactif) (“radioactive”) + -ium (suffix used to form the names of metallic elements).
radium (countable and uncountable, plural radiums)
radium (third-person singular simple present radiums, present participle radiuming, simple past and past participle radiumed)
| Chemical element | ||||||||
|---|---|---|---|---|---|---|---|---|
| Ra Atomic number 88 radium |
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|
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| Previous: ← francium (Fr) | ||||||||
| Next: actinium (Ac) → |
radium n (genitive radiī); second declension
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