fission nucléaire
\fi.sjɔ̃ ny.kle.ɛʁ\
The verdict
“fission nucléaire” is outside the top-ranked French vocabulary, used as a noun - the kind of word writers most often double-check.
- Unranked
- below top-frequency French
- 17
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) — Processus où un noyau atomique lourd est divisé en plusieurs noyaux atomiques légers et des neutrons. Cette réaction est utilisée pour la bombe A.
| Property | Value |
|---|---|
| Headword | fission nucléaire |
| Language | French |
| Part of speech | Noun |
| IPA | \fi.sjɔ̃ ny.kle.ɛʁ\ |
| Letters | 17 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “fission nucléaire” sits in French frequency
Spelling & Dictionary Insight
The French entry for fission nucléaire is 17 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as \fi.sjɔ̃ ny.kle.ɛʁ\. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "Processus où un noyau atomique lourd est divisé en plusieurs noyaux atomiques légers et des neutrons. Cette réaction est utilisée pour la bombe A.".
No misspelling variants are generated for fission nucléaire in our index, suggesting the orthography follows predictable French patterns. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.
No explicit etymology string is stored for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. For readers arriving here from a spelling check, the authoritative guidance is: the correct French form is fission nucléaire, spelled F-I-S-S-I-O-N- -N-U-C-L-É-A-I-R-E, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.
Definition
- 1Processus où un noyau atomique lourd est divisé en plusieurs noyaux atomiques légers et des neutrons. Cette réaction est utilisée pour la bombe A.
Antonyms
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.
Cite this page
Free to reuse with attribution (CC BY-SA). Copy the citation:
PlainSpell, “fission nucléaire, French word data” (May 6, 2026). Derived from Wiktionary (kaikki.org, CC BY-SA) and an open word-frequency list. https://plainspell.com/fr/mot/fission-nucleaire
Frequently Asked Questions
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Using “fission nucléaire”
The practical upshot for anyone who landed here from a spell-check.
- The one correct French spelling is F-I-S-S-I-O-N- -N-U-C-L-É-A-I-R-E - every other letter order is a misspelling in standard orthography.
- Say it as \fi.sjɔ̃ ny.kle.ɛʁ\ (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
Nearby French words
Other entries that begin with the letter F in our French index: