cadmium 99
The verdict
“cadmium 99” 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
- 10
- letters
Dominant Wiktionary sense: Isotope synthétique instable du cadmium de nombre de masse est 99, de symbole 99 48Cd, dont la demi-vie est de 17(1) s ; il est sujet soit à la désintégration β⁺ (probabilité de 99,79 %) à l’issue ...
| Property | Value |
|---|---|
| Headword | cadmium 99 |
| Language | French |
| Part of speech | Noun |
| IPA | \kad.mjɔm ka.tʁə.vɛ̃.diz.nœf\ |
| Letters | 10 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “cadmium 99” sits in French frequency
Spelling & Dictionary Insight
The French entry for cadmium 99 is 10 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as \kad.mjɔm ka.tʁə.vɛ̃.diz.nœf\. 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: "Isotope synthétique instable du cadmium de nombre de masse est 99, de symbole 99 48Cd, dont la demi-vie est de 17(1) s ; il est sujet soit à la désintégration β⁺ (probabilité de 99,79 %) à l’issue ...".
No misspelling variants are generated for cadmium 99 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 cadmium 99, spelled C-A-D-M-I-U-M- -9-9, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.
Definition
- 1Isotope synthétique instable du cadmium de nombre de masse est 99, de symbole 99 48Cd, dont la demi-vie est de 17(1) s ; il est sujet soit à la désintégration β⁺ (probabilité de 99,79 %) à l’issue de laquelle il est transmuté en argent 99 — 99 47Ag —, soit à l’émission de proton β-retardée (probabilité de 0,21 %) à l’issue de laquelle il est transmuté en palladium 98 — 98 46Pd —, soit à l’émission alpha β-retardée (probabilité inférieure à 10⁻⁴ %) à l’issue de laquelle il est transmuté en rhodium 95 — 95 45Rh.
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, “cadmium 99, 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/cadmium-99
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Using “cadmium 99”
The practical upshot for anyone who landed here from a spell-check.
- The one correct French spelling is C-A-D-M-I-U-M- -9-9 - every other letter order is a misspelling in standard orthography.
- Say it as \kad.mjɔm ka.tʁə.vɛ̃.diz.nœf\ (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 C in our French index: