immunofluorescence
"immunofluorescence" is a 18-letter English headword indexed on PlainSpell.
The verdict
“immunofluorescence” is an uncommon English word, ranked #73,290 in English word frequency and used as a noun.
- #73,290
- frequency rank, English
- 18
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A technique that uses a fluorochrome to indicate a specific antigen-antibody reaction.
| Property | Value |
|---|---|
| Headword | immunofluorescence |
| Language | English |
| Part of speech | Noun |
| Letters | 18 |
| Frequency rank | #73,290 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “immunofluorescence” sits in English frequency
Spelling & Dictionary Insight
The English entry for immunofluorescence is 18 letters long, classified as a noun. Corpus data places it at rank #73,290 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "A technique that uses a fluorochrome to indicate a specific antigen-antibody reaction.".
No misspelling variants are generated for immunofluorescence in our index, a sign its spelling follows regular English conventions. We don't track a confusable pairing for this entry, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From immuno- + fluorescence. The correct English form is immunofluorescence, spelled I-M-M-U-N-O-F-L-U-O-R-E-S-C-E-N-C-E.
Definition
- 1A technique that uses a fluorochrome to indicate a specific antigen-antibody reaction.
Etymology
From immuno- + fluorescence.
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 “immunofluorescence”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is I-M-M-U-N-O-F-L-U-O-R-E-S-C-E-N-C-E - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
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.