fermium
/ˈfɜːɹmiəm/noun
fermium is a noun meaning “A transuranic chemical element (symbol Fm) with an atomic number of 100” (English Wiktionary, September 2026). It is spelled F-E-R-M-I-U-M and has 3 syllables, and it appears about once in every 98 million words in written English (wordfreq, 2021 data).
What does fermium mean?
noun
- 1
A transuranic chemical element (symbol Fm) with an atomic number of 100.
- 2
An atom of this element.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce fermium?
- /ˈfɜːɹmiəm/
Fermium has 3 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vininn126-fermium.wav, LL-Q1860_(eng)-Naomi_Persephone_Amethyst_(NaomiAmethyst)-fermium.wav, LL-Q1860_(eng)-Tesco250-fermium.wav, Wikimedia Commons (author and licence on each file's page).
How common is fermium?
Fermium appears about once in every 98 million words in written English, the 317,168th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Fermium in Spanish, French, German and Portuguese
In the sense chemical element:
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does fermium come from?
From Fermi + -ium; named for Enrico Fermi.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).