oïdium
\ɔ.i.djɔm\
The verdict
“oïdium” is uncommon French (frequency #70,911 among 1,642 “O” headwords), classed as a noun. The kind of spelling people second-guess.
- #70,911
- frequency rank, French
- 1,642
- “O” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Champignon microscopique parasite de certains végétaux et, en particulier, de la vigne. Il se présente souvent sous forme de duvet blanchâtre.
Corpus desk
Index FR-oidium · oïdium · French
oïdium · rank #70,911 · 0 variants · 0 confusables
- FREQ-RARE #70,911
- LEN-LONG 6 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 1,642
- PHOTO-FINISH ouvrirai
Nearest frequency peer: ouvrirai (-2 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 « oïdium »
Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court
- otites
otites
29,094 corpus weight
- ouistiti
ouistiti
29,093 corpus weight
- ouvrirai
ouvrirai
29,092 corpus weight
- oïdium
oïdium
29,090 corpus weight
- pact
pact
29,087 corpus weight
- pae
pae
29,086 corpus weight
What this shows Vue de longue queue: où « oïdium » se situe face à des rangs français aussi rares.
| Property | Value |
|---|---|
| Headword | oïdium |
| Language | French |
| Part of speech | Noun |
| IPA | \ɔ.i.djɔm\ |
| Letters | 6 |
| Frequency rank | #70,911 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Longue queue: rang de « oïdium » en français
Rare enough to double-check
oïdium is uncommon French at frequency #70,911 among 1,642 “O” headwords, classed as anoun, transcribed \ɔ.i.djɔm\. Rarity is why readers land here mid-draft. 2 senses are on record.
Our edit-distance generator produced no likely misspellings for oïdium, typically a sign the spelling maps closely to how the word sounds. This headword has no recorded confusable partner, which typically means the spelling is too distinctive to be mistaken for another word.
This entry's etymology isn't recorded, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct French form is oïdium, spelled O-Ï-D-I-U-M.
Definition
- 1Champignon microscopique parasite de certains végétaux et, en particulier, de la vigne. Il se présente souvent sous forme de duvet blanchâtre.
- 2Maladie cryptogamique provoquée par ce champignon.
Recorded use
Wiktionary examplesThese source excerpts show how oïdium appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
L’azoxystrobine possède un large spectre sur les champignons pathogènes de la vigne : le mildiou, l’oïdium, le black-rot, le rougeot parasitaire, l’excoriose. Une efficacité secondaire sur la pourriture grise (Botrytis cinerea) a été observée.
Le Bacchus, qui provient d'un semis de Clinton, est un cépage d'avenir pour la culture en treillages dans les sols profonds. […]. Il est très vigoureux, très fertile, très résistant au phylloxéra, à l’oïdium et au mildew.
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 "oïdium", not the corpus desk frequency band.
Same letter count
Frequency-ranked French headwords with 6 letters (nearest by frequency rank).