eka-actinium

noun

unbiunium (element 121)

OriginEnglish actinium ← French actinium ← Ancient Greek ᾰ̓κτῑ́ς (ăktī́s) →
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Meanings

nouneka-actinium (uncountable)
  1. uncountablechemistryunbiunium (element 121)
  2. uncountablechemistryuntriennium (dvi-lanthanum) (element 139)

Synonyms & antonyms

Also see
unbiunium

Origin

  1. Englisheka-
  2. Ancient Greekᾰ̓κτῑ́ς (ăktī́s)
  3. Frenchactino-
  4. Frenchactinium
  5. Englishactinium
  6. Englisheka-actinium

From eka- + actinium.

Full word history & related roots →
Cite this entry
APA

eka-actinium. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/eka-actinium

MLA

“eka-actinium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/eka-actinium. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “eka-actinium,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/eka-actinium.

Source: eka-actinium on Wiktionary, CC BY-SA 4.0.