isomère
\i.zɔ.mɛʁ\
The verdict
“isomère” is uncommon French (frequency #78,529 among 3,561 “I” headwords), classed as a noun. The kind of spelling people second-guess.
- #78,529
- frequency rank, French
- 3,561
- “I” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Molécule organique qui possède la même formule brute qu’une autre molécule, mais qui a une formule semi-développée ou une formule développée différente.
Corpus desk
Index FR-isomere · isomère · French
isomère · rank #78,529 · 0 variants · 0 confusables
- FREQ-RARE #78,529
- LEN-LONG 7 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,561
- PHOTO-FINISH Islandaises
Nearest frequency peer: Islandaises (-1 rank slots)
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.
Rangs de longue queue près de « isomère »
Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court
- interperson…
interpersonnelle
21,477 corpus weight
- interprétez
interprétez
21,475 corpus weight
- Islandaises
Islandaises
21,473 corpus weight
- isomère
isomère
21,472 corpus weight
- Izieu
Izieu
21,470 corpus weight
- jambiers
jambiers
21,467 corpus weight
What this shows Vue de longue queue: où « isomère » se situe face à des rangs français aussi rares.
| Property | Value |
|---|---|
| Headword | isomère |
| Language | French |
| Part of speech | Noun |
| IPA | \i.zɔ.mɛʁ\ |
| Letters | 7 |
| Frequency rank | #78,529 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Longue queue: rang de « isomère » en français
Rare enough to double-check
isomère is uncommon French at frequency #78,529 among 3,561 “I” headwords, classed as anoun, transcribed \i.zɔ.mɛʁ\. Rarity is why readers land here mid-draft. 2 senses are on record.
The misspelling generator found no plausible variants for isomère, and the word's spelling is regular enough that our generator found nothing worth flagging. This entry stands alone in our confusable dataset, since no other headword is close enough in sound or shape to pair with it.
This entry's etymology isn't recorded, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct French form is isomère, spelled I-S-O-M-È-R-E.
Definition
- 1Molécule organique qui possède la même formule brute qu’une autre molécule, mais qui a une formule semi-développée ou une formule développée différente.
- 2Noyau maintenu dans un état excité instable de manière anormalement longue.
Recorded use
Wiktionary examplesThese source excerpts show how isomère appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
On appelle isomères des composés chimiques qui ont la même formule brute mais qui diffèrent par une ou plusieurs propriétés.
Une perte importante d’acide benzoïque pour les isomères trans suggèrent que la protonation soit régiosélective sur le site benzoate.
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); frequency ordering uses the FrequencyWords open word-frequency list (2018 French corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Similar French words by spelling shape
Same letter count and similar misspelling depth for "isomère", not the corpus desk frequency band.
Same letter count
Frequency-ranked French headwords with 7 letters (nearest by frequency rank).