ornithosis
"ornithosis" is a 10-letter English headword indexed on PlainSpell.
The verdict
“ornithosis” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 10
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A zoonotic infectious disease (of birds) caused by a bacterium called Chlamydia psittaci, it can be transmitted to humans and other animals. When carried by any species of bird belonging to the Psi...
| Property | Value |
|---|---|
| Headword | ornithosis |
| Language | English |
| Part of speech | Noun |
| Letters | 10 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “ornithosis” sits in English frequency
Rare enough to double-check
ornithosis is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A zoonotic infectious disease (of birds) caused by a bacterium called Chlamydia psittaci, it can be transmitted to humans and other animals. When carried by any species of bird belonging to the Psi...".
No misspelling variants are generated for ornithosis in our index, a sign its spelling follows regular English conventions. This headword has no recorded confusable partner, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From ornitho- + -osis. The correct English form is ornithosis, spelled O-R-N-I-T-H-O-S-I-S.
Definition
- 1A zoonotic infectious disease (of birds) caused by a bacterium called Chlamydia psittaci, it can be transmitted to humans and other animals. When carried by any species of bird belonging to the Psittacidae family (parrots), it is called psittacosis or parrot fever.
Etymology
From ornitho- + -osis.
Synonyms
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 “ornithosis”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is O-R-N-I-T-H-O-S-I-S - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English 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.