Word.ws English Dictionary

unununium

unununium noun: roentgenium.

Noun

unununium (uncountable)

  1. (dated) roentgenium.

Origin of unununium

Systematic element name, from un- + un- + un- + -ium.

Questions about unununium

What does unununium mean?
Unununium means roentgenium.
What part of speech is unununium?
Unununium is a noun.

Words near unununium in the dictionary

  1. ununoctium
  2. ununpentium
  3. ununquadium
  4. ununseptium
  5. ununtrium
  6. unununium
  7. ununusual
  8. unupbraided
  9. unupbraiding
  10. unupbraidingly
  11. unupdated

Source and license

Adapted from Wiktionary: unununium (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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Pronunciation audio from Wikimedia Commons, each file under its own free license: en-uk-unununium.ogg.

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