Meanings
Synonyms & antonyms
nounSynonym of francium.
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Origin
From the former practice of naming the steps in a decay chain sequential letters. Francium was first identified in the naturally occurring actinium series.
Full word history & related roots →Cite this entry
APA
actinium-K. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/actinium-K
MLA
“actinium-K.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/actinium-K. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “actinium-K,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/actinium-K.
Source: actinium-K on Wiktionary, CC BY-SA 4.0.