ferritin
"ferritin" is a 8-letter English headword indexed on PlainSpell.
The verdict
“ferritin” is uncommon English (frequency #87,280 among 2,507 “F” headwords), classed as a noun. The kind of spelling people second-guess.
- #87,280
- frequency rank, English
- 2,507
- “F” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any of a family of iron-carrying globular protein complexes consisting of 24 protein subunits; the key protein of intracellular iron storage.
Corpus desk
Index EN-ferritin · ferritin · English
ferritin · rank #87,280 · 0 variants · 0 confusables
- FREQ-RARE #87,280
- LEN-LONG 8 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,507
- PHOTO-FINISH fibroid
Nearest frequency peer: fibroid (+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 “ferritin”
Sparse band: bars invert rank so rarer forms read shorter
- Falkner
Falkner
12,730 corpus weight
- Faustian
Faustian
12,725 corpus weight
- ferritin
ferritin
12,721 corpus weight
- fibroid
fibroid
12,720 corpus weight
- FII
FII
12,716 corpus weight
- filmer
filmer
12,715 corpus weight
What this shows Long-tail view: where “ferritin” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | ferritin |
| Language | English |
| Part of speech | Noun |
| Letters | 8 |
| Frequency rank | #87,280 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “ferritin” in English
Rare enough to double-check
ferritin is uncommon English at frequency #87,280 among 2,507 “F” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Any of a family of iron-carrying globular protein complexes consisting of 24 protein subunits; the key protein of intracellular iron storage.".
No misspelling variants are generated for ferritin in our index, since its letter sequence doesn't invite the usual edit-distance slips. It is not paired with a close-neighbour confusable in our dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
Etymologically, the entry records: From Latin ferrātus (“iron-bearing”) and -in; compare also ferri- and ferro-. The correct English form is ferritin, spelled F-E-R-R-I-T-I-N.
Definition
- 1Any of a family of iron-carrying globular protein complexes consisting of 24 protein subunits; the key protein of intracellular iron storage.
Etymology
From Latin ferrātus (“iron-bearing”) and -in; compare also ferri- and ferro-.
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 "ferritin", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 8 letters (nearest by frequency rank).