hespérium
\ɛs.pe.ʁjɔm\
The verdict
“hespérium” is uncommon French (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency French
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Élément chimique qu’Enrico Fermi et ses collaborateurs crurent synthétiser en bombardant de l’uranium avec des neutrons, de numéro atomique 94 et symbole Hs (ou Es, pour espérium, selon les sources...
| Property | Value |
|---|---|
| Headword | hespérium |
| Language | French |
| Part of speech | Noun |
| IPA | \ɛs.pe.ʁjɔm\ |
| Letters | 9 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “hespérium” sits in French frequency
Rare enough to double-check
hespérium is uncommon French outside the top frequency list, classed as anoun, transcribed \ɛs.pe.ʁjɔm\. Rarity is why readers land here mid-draft. Gloss: "Élément chimique qu’Enrico Fermi et ses collaborateurs crurent synthétiser en bombardant de l’uranium avec des neutrons, de numéro atomique 94 et symbole Hs (ou Es, pour espérium, selon les sources...".
The misspelling generator found no plausible variants for hespérium, since its letter sequence doesn't invite the usual edit-distance slips. Our confusable-pair dataset has no match for it, since no other headword is close enough in sound or shape to pair with it.
This headword's origin isn't recorded in our source data, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct French form is hespérium, spelled H-E-S-P-É-R-I-U-M.
Definition
- 1Élément chimique qu’Enrico Fermi et ses collaborateurs crurent synthétiser en bombardant de l’uranium avec des neutrons, de numéro atomique 94 et symbole Hs (ou Es, pour espérium, selon les sources). Avec la découverte de la fission nucléaire en 1938, il devint clair qu’il ne s’agissait en fait que de baryum et d’autres débris (krypton, etc.).
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.
Frequently Asked Questions
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Using “hespérium”
The practical upshot for anyone who landed here from a spell-check.
- The one correct French spelling is H-E-S-P-É-R-I-U-M - every other letter order is a misspelling in standard orthography.
- Say it as \ɛs.pe.ʁjɔm\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more French words and confusable pairs in the same reference. French words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.