peritonitis
"peritonitis" is a 11-letter English headword indexed on PlainSpell.
The verdict
“peritonitis” is uncommon English (frequency #63,885 among 4,417 “P” headwords), classed as a noun. The kind of spelling people second-guess.
- #63,885
- frequency rank, English
- 4,417
- “P” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Inflammation of the peritoneum, especially when caused by an infectious organism introduced into the abdominal cavity.
Corpus desk
Index EN-peritonitis · peritonitis · English
peritonitis · rank #63,885 · 0 variants · 0 confusables
- FREQ-RARE #63,885
- LEN-MEGA 11 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 4,417
- PHOTO-FINISH perilously
Nearest frequency peer: perilously (-1 rank slots)
Read with this headword: Spelling guide for this pattern
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.
Long-tail ranks near “peritonitis”
Sparse band: bars invert rank so rarer forms read shorter
- pecked
pecked
36,122 corpus weight
- peen
peen
36,121 corpus weight
- pennywise
pennywise
36,120 corpus weight
- perilously
perilously
36,117 corpus weight
- peritonitis
peritonitis
36,116 corpus weight
- pharyngeal
pharyngeal
36,112 corpus weight
What this shows Long-tail view: where “peritonitis” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | peritonitis |
| Language | English |
| Part of speech | Noun |
| Letters | 11 |
| Frequency rank | #63,885 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “peritonitis” in English
Rare enough to double-check
peritonitis is uncommon English at frequency #63,885 among 4,417 “P” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Inflammation of the peritoneum, especially when caused by an infectious organism introduced into the abdominal cavity.".
No generated misspelling entries exist for peritonitis in our index, typically a sign the spelling maps closely to how the word sounds. Our confusable-pair dataset has no match for it, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: From peritoneum + -itis. The correct English form is peritonitis, spelled P-E-R-I-T-O-N-I-T-I-S.
Definition
- 1Inflammation of the peritoneum, especially when caused by an infectious organism introduced into the abdominal cavity.
Recorded use
Wiktionary exampleThese source excerpts show how peritonitis appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Intraperitoneal injections of a strong solution produce fibrohemorrhagic peritonitis of varying intensity, according to the strength of the solution; while intraperitoneal injections of small quantities of a diluted solution of formalin induce a chronic peritonitis with great connective tissue proliferation, and a striking eosinophilia.
Etymology
From peritoneum + -itis.
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 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "peritonitis", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 11 letters (nearest by frequency rank).