celtium

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celtium

noun

historical, uncountable The name originally proposed for element 72, now called hafnium; the discoverer, Georges Urbain, conjectured it to be a rare earth element, and proposed the symbol Ct; but subsequent work showed it to be a transition element, and hafnium was given the symbol Hf.

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MLA

"celtium." Wiktionary, via Micwyn, micwyn.com/word/celtium. Accessed 6 Nov. 2026.

APA

celtium. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/celtium

Chicago

"celtium." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/celtium.

BibTeX

@misc{celtium_2026,
  title = {celtium},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/celtium},
  urldate = {2026-11-06}
}