Word.ws English Dictionary

radioactinium

radioactinium noun: the radioactive isotope of actinium, 22789Ac, having a half-life of 21.7 years.

Noun

radioactinium (uncountable)

  1. The radioactive isotope of actinium, 22789Ac, having a half-life of 21.7 years
    Synonyms:
    actinium-227

radioactinium meaning in Tamil

radioactinium in Tamil

கதிரலைக் கதிரியம்

Synonyms of radioactinium

  • actinium-227

Origin of radioactinium

From radio- + actinium.

Questions about radioactinium

What does radioactinium mean?
Radioactinium means the radioactive isotope of actinium, 22789Ac, having a half-life of 21.7 years.
What is radioactinium in Tamil?
Radioactinium in Tamil is கதிரலைக் கதிரியம். See Radioactinium meaning in Tamil.
What part of speech is radioactinium?
Radioactinium is a noun.

Words near radioactinium in the dictionary

  1. radio-telephones
  2. radioablation
  3. radioacoustics
  4. radioactinide
  5. radioactinides
  6. radioactinium
  7. radioactivate
  8. radioactivated
  9. radioactivates
  10. radioactivating
  11. radioactivation

Source and license

Adapted from Wiktionary: radioactinium (page history and authors); radioactinium (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “radioactinium.” Word.ws, https://word.ws/radioactinium. Based on Wiktionary, CC BY-SA 4.0.