quercetin

/ˈkwɜː(ɹ).sɪt.ɪn/

//ˈkwɜː(ɹ).sɪt.ɪn// noun

"quercetin" is a 9-letter English headword indexed on PlainSpell.

The verdict

“quercetin” is uncommon English (frequency #97,469 among 288 “Q” headwords), classed as a noun. The kind of spelling people second-guess.

#97,469
frequency rank, English
288
“Q” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A flavonol found in many fruits, vegetables, leaves and grains.

Corpus desk

Index EN-quercetin · quercetin · English

quercetin · rank #97,469 · 0 variants · 0 confusables

  • FREQ-RARE #97,469
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 288
  • PHOTO-FINISH Quigg

Nearest frequency peer: Quigg (+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 “quercetin”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for quercetin
PropertyValue
Headwordquercetin
LanguageEnglish
Part of speechNoun
IPA/ˈkwɜː(ɹ).sɪt.ɪn/
Letters9
Frequency rank#97,469
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “quercetin” 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).quercetinfalls 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: “Quigg” (#97,470), “qh” (#97,467), “Purnima” (#97,465). Among 288 “Q” headwords, “quercetin” is #97,469. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

quercetin is uncommon English at frequency #97,469 among 288 “Q” headwords, classed as anoun, transcribed /ˈkwɜː(ɹ).sɪt.ɪn/. Rarity is why readers land here mid-draft. Gloss: "A flavonol found in many fruits, vegetables, leaves and grains.".

quercetin doesn't appear in our generated misspelling index, and the word's spelling is regular enough that our generator found nothing worth flagging. No confusable counterpart is on file for this word, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: translingual Quercus (“genus of oak”) The correct English form is quercetin, spelled Q-U-E-R-C-E-T-I-N.

Definition

  1. 1
    A flavonol found in many fruits, vegetables, leaves and grains.

Recorded use

Wiktionary examples

These source excerpts show how quercetin appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Quercetin has gained the attention of the supplement industry, and is now widely promoted as a natural anti-inflammatory and antioxidant magic bullet.
  2. The one daily supplement that often reduces allergic symptoms across the board is the phytonutrient quercetin, a chemical compound known as a bioflavonoid and found in plants.

Etymology

translingual Quercus (“genus of oak”)

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 "quercetin"?
"quercetin" is spelled Q-U-E-R-C-E-T-I-N. The IPA pronunciation is /ˈkwɜː(ɹ).sɪt.ɪn/.
What does "quercetin" mean?
As a noun, "quercetin" means: A flavonol found in many fruits, vegetables, leaves and grains.
How do you pronounce "quercetin"?
The IPA (International Phonetic Alphabet) transcription for "quercetin" is /ˈkwɜː(ɹ).sɪt.ɪn/. 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 "quercetin"?
translingual Quercus (“genus of oak”) 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 "quercetin", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 9 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list