réaction en chaîne
\ʁe.ak.sjɔ̃ ɑ̃ ʃɛn\
The verdict
“réaction en chaîne” is uncommon French (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency French
- 18
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Réaction complexe au cours de laquelle un ou plusieurs intermédiaires réactionnels, qui sont souvent des radicaux, sont continuellement régénérés par la répétition d’un cycle d’étapes élémentaires,...
| Property | Value |
|---|---|
| Headword | réaction en chaîne |
| Language | French |
| Part of speech | Noun |
| IPA | \ʁe.ak.sjɔ̃ ɑ̃ ʃɛn\ |
| Letters | 18 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “réaction en chaîne” sits in French frequency
Rare enough to double-check
réaction en chaîne is uncommon French outside the top frequency list, classed as anoun, transcribed \ʁe.ak.sjɔ̃ ɑ̃ ʃɛn\. Rarity is why readers land here mid-draft. 3 senses are on record.
We couldn't generate a plausible misspelling set for réaction en chaîne, typically a sign the spelling maps closely to how the word sounds. This headword has no recorded confusable partner, a sign it's visually distinctive enough not to be mixed up with another word.
No borrowing history is documented for this entry, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct French form is réaction en chaîne, spelled R-É-A-C-T-I-O-N- -E-N- -C-H-A-Î-N-E.
Definition
- 1Réaction complexe au cours de laquelle un ou plusieurs intermédiaires réactionnels, qui sont souvent des radicaux, sont continuellement régénérés par la répétition d’un cycle d’étapes élémentaires, dites « étapes de propagation ».
- 2Réaction de fission en chaîne.
- 3Suite d’évènements dont chacun est causé par le ou les précédents.
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.
Frequently Asked Questions
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Using “réaction en chaîne”
The practical upshot for anyone who landed here from a spell-check.
- The one correct French spelling is R-É-A-C-T-I-O-N- -E-N- -C-H-A-Î-N-E - every other letter order is a misspelling in standard orthography.
- Say it as \ʁe.ak.sjɔ̃ ɑ̃ ʃɛn\ (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.