francium
/ˈfɹansɪəm/
"francium" is a 8-letter English headword indexed on PlainSpell.
The verdict
“francium” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 8
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The chemical element (symbol Fr) with an atomic number of 87. It is an intensely radioactive alkali metal that is not found in nature.
Corpus desk
Index EN-francium · francium · English
francium · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-LONG 8 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "F" thin
- PHOTO-UNK Peer pending
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
| Property | Value |
|---|---|
| Headword | francium |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈfɹansɪəm/ |
| Letters | 8 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “francium” in English
Rare enough to double-check
francium is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈfɹansɪəm/. Rarity is why readers land here mid-draft. 2 senses are on record.
No generated misspelling entries exist for francium in our index, a sign its spelling follows regular English conventions. This headword has no recorded confusable partner, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From French francium, from France + -ium (after the native country of Marguerite Perey). The correct English form is francium, spelled F-R-A-N-C-I-U-M.
Definition
- 1The chemical element (symbol Fr) with an atomic number of 87. It is an intensely radioactive alkali metal that is not found in nature.
- 2A single atom of this element.
Recorded use
Wiktionary examplesThese source excerpts show how francium appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The most elusive element of all, however, appears to be francium, which is so rare that it is thought that our entire planet may contain, at any given moment, fewer than twenty francium atoms.
Notice that franciums are balanced without even thinking in moles, atoms, or whatever.
Etymology
From French francium, from France + -ium (after the native country of Marguerite Perey).
Synonyms
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.