radium CI

\ʁa.djɔm se œ̃\

/\ʁa.djɔm se œ̃\/ noun

The verdict

“radium CI” 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
9
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) — Ancienne désignation du polonium-214, symbole RaCᴵ.

Key facts for radium CI
PropertyValue
Headwordradium CI
LanguageFrench
Part of speechNoun
IPA\ʁa.djɔm se œ̃\
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “radium CI” sits in French frequency

radium CI falls outside the top-100,000 ranked French words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The French entry for radium CI is 9 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as \ʁa.djɔm se œ̃\. 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: "Ancienne désignation du polonium-214, symbole RaCᴵ.".

No misspelling variants are generated for radium CI 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 radium CI, spelled R-A-D-I-U-M- -C-I, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    Ancienne désignation du polonium-214, symbole RaCᴵ.

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, “radium CI, 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/radium-ci

Frequently Asked Questions

How do you spell "radium CI"?
"radium CI" is spelled R-A-D-I-U-M- -C-I. The IPA pronunciation is \ʁa.djɔm se œ̃\.
What does "radium CI" mean?
As a noun, "radium CI" means: Ancienne désignation du polonium-214, symbole RaCᴵ.
How do you pronounce "radium CI"?
The IPA (International Phonetic Alphabet) transcription for "radium CI" is \ʁa.djɔm se œ̃\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "radium CI" come from?
"radium CI" is a French word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “radium CI”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct French spelling is R-A-D-I-U-M- -C-I - every other letter order is a misspelling in standard orthography.
  • Say it as \ʁa.djɔm se œ̃\ (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 R in our French index:

Explore PlainSpell

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.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list