mucin

/ˈmjuːsɪn/

//ˈmjuːsɪn// noun

By · According to Wiktionary data (CC BY-SA) ·

"mucin" is a 5-letter English headword indexed on PlainSpell.

The verdict

“mucin” is uncommon English (frequency #91,828 among 4,057 “M” headwords), classed as a noun. The kind of spelling people second-guess.

#91,828
frequency rank, English
4,057
“M” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any of several glycoproteins found in mucus

Corpus desk

Index EN-mucin · mucin · English

mucin · rank #91,828 · 0 variants · 0 confusables

  • FREQ-RARE #91,828
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 4,057
  • PHOTO-FINISH Mulhouse

Nearest frequency peer: Mulhouse (+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 “mucin”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for mucin
PropertyValue
Headwordmucin
LanguageEnglish
Part of speechNoun
IPA/ˈmjuːsɪn/
Letters5
Frequency rank#91,828
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “mucin” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).mucinfalls 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: “Mulhouse” (#91,829), “Mullaney” (#91,830), “multiscale” (#91,831). Among 4,057 “M” headwords, “mucin” is #91,828. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

mucin is uncommon English at frequency #91,828 among 4,057 “M” headwords, classed as anoun, transcribed /ˈmjuːsɪn/. Rarity is why readers land here mid-draft. Gloss: "Any of several glycoproteins found in mucus".

The misspelling generator found no plausible variants for mucin, which points to an orthography that plays by predictable English rules. This headword has no recorded confusable partner, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From muc- + -in. The correct English form is mucin, spelled M-U-C-I-N.

Definition

  1. 1
    Any of several glycoproteins found in mucus

Etymology

From muc- + -in.

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 "mucin"?
"mucin" is spelled M-U-C-I-N. The IPA pronunciation is /ˈmjuːsɪn/.
What does "mucin" mean?
As a noun, "mucin" means: Any of several glycoproteins found in mucus
How do you pronounce "mucin"?
The IPA (International Phonetic Alphabet) transcription for "mucin" is /ˈmjuːsɪn/. 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 "mucin"?
From muc- + -in. 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 "mucin", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

métro#91,833Nizar#91,860Meaux#91,789Matts#91,784

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

Source: FrequencyWords open word-frequency list