periodontitis
"periodontitis" is a 13-letter English headword indexed on PlainSpell.
The verdict
“periodontitis” is uncommon English (frequency #74,389 among 4,417 “P” headwords), classed as a noun. The kind of spelling people second-guess.
- #74,389
- frequency rank, English
- 4,417
- “P” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A serious form or stage of periodontal disease which may lead to loss of bone and falling out of teeth.
Corpus desk
Index EN-periodontitis · periodontitis · English
periodontitis · rank #74,389 · 0 variants · 0 confusables
- FREQ-RARE #74,389
- LEN-MEGA 13 letters
- VOW-6 6 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 4,417
- PHOTO-FINISH perlite
Nearest frequency peer: perlite (+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 “periodontitis”
Sparse band: bars invert rank so rarer forms read shorter
- peplum
peplum
25,615 corpus weight
- periodontit…
periodontitis
25,612 corpus weight
- perlite
perlite
25,611 corpus weight
- personify
personify
25,610 corpus weight
- Petrarch
Petrarch
25,609 corpus weight
- petrel
petrel
25,608 corpus weight
What this shows Long-tail view: where “periodontitis” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | periodontitis |
| Language | English |
| Part of speech | Noun |
| Letters | 13 |
| Frequency rank | #74,389 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “periodontitis” in English
Rare enough to double-check
periodontitis is uncommon English at frequency #74,389 among 4,417 “P” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A serious form or stage of periodontal disease which may lead to loss of bone and falling out of teeth.".
The misspelling generator found no plausible variants for periodontitis, which points to an orthography that plays by predictable English rules. This headword has no recorded confusable partner, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: From Ancient Greek περί (perí, “around”) + ὀδούς (odoús, “a tooth”) + -itis. The correct English form is periodontitis, spelled P-E-R-I-O-D-O-N-T-I-T-I-S.
Definition
- 1A serious form or stage of periodontal disease which may lead to loss of bone and falling out of teeth.
Recorded use
Wiktionary examplesThese source excerpts show how periodontitis appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
An untreated gingivitis may lead to periodontitis, both forms of periodontal disease.
Schlein reports favorable results from the use of Besredka's antivirus in cases of ulcerous stomatitis, acute pulpitis and periodontitides.
Etymology
From Ancient Greek περί (perí, “around”) + ὀδούς (odoús, “a tooth”) + -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 "periodontitis", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 13 letters (nearest by frequency rank).