chitosan
/ˈkaɪ.tə.sæn/
"chitosan" is a 8-letter English headword indexed on PlainSpell.
The verdict
“chitosan” is uncommon English (frequency #75,724 among 43,570 “C” headwords), classed as a noun. The kind of spelling people second-guess.
- #75,724
- frequency rank, English
- 43,570
- “C” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An oligosaccharide derived from chitin, sometimes used in the absorption of fat
| Property | Value |
|---|---|
| Headword | chitosan |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈkaɪ.tə.sæn/ |
| Letters | 8 |
| Frequency rank | #75,724 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “chitosan” sits in English frequency
Rare enough to double-check
chitosan is uncommon English at frequency #75,724 among 43,570 “C” headwords, classed as anoun, transcribed /ˈkaɪ.tə.sæn/. Rarity is why readers land here mid-draft. Gloss: "An oligosaccharide derived from chitin, sometimes used in the absorption of fat".
No generated misspelling entries exist for chitosan in our index, a sign its spelling follows regular English conventions. This headword has no recorded confusable partner, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
No documented word history exists for this headword, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is chitosan, spelled C-H-I-T-O-S-A-N.
Definition
- 1An oligosaccharide derived from chitin, sometimes used in the absorption of fat
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.
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Using “chitosan”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is C-H-I-T-O-S-A-N - every other letter order is a misspelling in standard orthography.
- Say it as /ˈkaɪ.tə.sæn/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
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.