ultraviolet
\yl.tʁa.vjɔ.lɛ\
The verdict
“ultraviolet” is uncommon French (frequency #51,796 among 456 “U” headwords), classed as an adjective. The kind of spelling people second-guess.
- #51,796
- frequency rank, French
- 456
- “U” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Dont la longueur d’onde est plus courte que celles de la lumière visible dans le spectre électromagnétique.
Corpus desk
Index FR-ultraviolet · ultraviolet · French
ultraviolet · rank #51,796 · 0 variants · 0 confusables
- FREQ-RARE #51,796
- LEN-MEGA 11 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 456
- PHOTO-FINISH TWh
Nearest frequency peer: TWh (-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 « ultraviolet »
Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court
- Turkestan
Turkestan
48,207 corpus weight
- TWh
TWh
48,206 corpus weight
- ultraviolet
ultraviolet
48,205 corpus weight
- unter
unter
48,204 corpus weight
- utilisatrice
utilisatrice
48,203 corpus weight
- vac
vac
48,202 corpus weight
What this shows Vue de longue queue: où « ultraviolet » se situe face à des rangs français aussi rares.
| Property | Value |
|---|---|
| Headword | ultraviolet |
| Language | French |
| Part of speech | Adjective |
| IPA | \yl.tʁa.vjɔ.lɛ\ |
| Letters | 11 |
| Frequency rank | #51,796 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Longue queue: rang de « ultraviolet » en français
Rare enough to double-check
ultraviolet is uncommon French at frequency #51,796 among 456 “U” headwords, classed as anadjective, transcribed \yl.tʁa.vjɔ.lɛ\. Rarity is why readers land here mid-draft. Gloss: "Dont la longueur d’onde est plus courte que celles de la lumière visible dans le spectre électromagnétique.".
ultraviolet has no tracked misspelling variants, and the word's spelling is regular enough that our generator found nothing worth flagging. It is not paired with a close-neighbour confusable in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
This entry carries no recorded etymology, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct French form is ultraviolet, spelled U-L-T-R-A-V-I-O-L-E-T.
Definition
- 1Dont la longueur d’onde est plus courte que celles de la lumière visible dans le spectre électromagnétique.
Recorded use
Wiktionary examplesThese source excerpts show how ultraviolet appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
L’allylène et l’acide chlorhydrique donnent surtout du β-chloropropylène qui se polymérise par exemple sous l’action des rayons ultraviolets, et peut alors servir à faire des vernis ou peut être déshalogénisé par traitement en solvants neutres par le zinc, le magnésium ou le sodium, et donne alors un produit ressemblant au caoutchouc.
Contrairement aux rayons X ou ultraviolets, elles ne seraient pas assez puissantes pour atteindre les cellules du corps humain et affecter notre système immunitaire.
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 "ultraviolet", not the corpus desk frequency band.
Same letter count
Frequency-ranked French headwords with 11 letters (nearest by frequency rank).