mendelevium

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mendelevium

  • /ˌmɛn.dəˈliː.vi.əm/ UK
  • /-ˈleɪ-/ UK
  • /ˌmɛn.dəˈli.vi.əm/ US
  • /-ˈleɪ-/ US

Where it comes from

From a modified version of Mendeleev + -ium (suffix forming names of metal elements), named in honour of the Russian chemist Dmitri Mendeleev (1834–1907) who formulated the periodic law and created an early version of the periodic table of elements. The word was proposed by a team from the University of California, Berkeley, comprising the team leader Stanley Gerald Thompson and members Gregory Robert Choppin, Albert Ghiorso, Bernard George Harvey, and Glenn T. Seaborg, who artificially synthesized the element in early 1955. (The same name was proposed, but rejected, for the earlier-discovered elements berkelium and erbium.)

noun mendeleevium · mendeleyevium

  1. uncountable A radioactive metallic transuranic chemical element (symbol Md) with atomic number 101, which is artificially produced in a particle accelerator. Mendelevium, the heaviest and rarest form of matter known, has been produced in the University of California's cyclotron. Identity based on only 17 atoms of new element [subtitle]. […] Mendelevium is intensely radioactive, decaying by spontaneous fission. Its half-life is between a half hour and thr

    Similar: Md, Mv, unnilunium

  2. countable An atom of this element.

    Similar: Md, Mv, unnilunium

Translations

Every language

noun chemical element with atomic number 101

Españolmendelevio
한국어멘델레븀 mendellebyum
日本語メンデレビウム menderebiumu
中文鍆 /钔 mén
Portuguêsmendelévio
Françaismendélévium
DeutschMendelevium
Italianomendelevio
Ελληνικάμεντελέβιο mentelévio
Românămendeleviu
Русскийменделе́вий mendelévij
Tiếng Việtmenđelevi
العربيةمَنْدَلِفْيُوم mandalifyum
עבריתמנדלביום mendelevyum

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MLA

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

APA

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

Chicago

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

BibTeX
@misc{mendelevium_2026,
  title = {mendelevium},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/mendelevium},
  urldate = {2026-11-06}
}