fibroblast

/ˈfaɪ.brəˌblɑːst/

//ˈfaɪ.brəˌblɑːst// noun

"fibroblast" is a 10-letter English headword indexed on PlainSpell.

The verdict

“fibroblast” is uncommon English (frequency #59,392 among 2,507 “F” headwords), classed as a noun. The kind of spelling people second-guess.

#59,392
frequency rank, English
2,507
“F” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A cell found in connective tissue that produces fibers, such as collagen.

Corpus desk

Index EN-fibroblast · fibroblast · English

fibroblast · rank #59,392 · 0 variants · 0 confusables

  • FREQ-RARE #59,392
  • LEN-MEGA 10 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,507
  • PHOTO-FINISH fief

Nearest frequency peer: fief (+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 “fibroblast”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “fibroblast” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for fibroblast
PropertyValue
Headwordfibroblast
LanguageEnglish
Part of speechNoun
IPA/ˈfaɪ.brəˌblɑːst/
Letters10
Frequency rank#59,392
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “fibroblast” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).fibroblastfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “fief” (#59,393), “FDNY” (#59,389), “Fateh” (#59,388). Among 2,507 “F” headwords, “fibroblast” is #59,392. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

fibroblast is uncommon English at frequency #59,392 among 2,507 “F” headwords, classed as anoun, transcribed /ˈfaɪ.brəˌblɑːst/. Rarity is why readers land here mid-draft. Gloss: "A cell found in connective tissue that produces fibers, such as collagen.".

fibroblast has no tracked misspelling variants, suggesting the orthography follows predictable English patterns. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From fibro- + -blast. The correct English form is fibroblast, spelled F-I-B-R-O-B-L-A-S-T.

Definition

  1. 1
    A cell found in connective tissue that produces fibers, such as collagen.

Etymology

From fibro- + -blast.

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

How do you spell "fibroblast"?
"fibroblast" is spelled F-I-B-R-O-B-L-A-S-T. The IPA pronunciation is /ˈfaɪ.brəˌblɑːst/.
What does "fibroblast" mean?
As a noun, "fibroblast" means: A cell found in connective tissue that produces fibers, such as collagen.
How do you pronounce "fibroblast"?
The IPA (International Phonetic Alphabet) transcription for "fibroblast" is /ˈfaɪ.brəˌblɑːst/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "fibroblast"?
From fibro- + -blast. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "fibroblast", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list