serology
"serology" is a 8-letter English headword indexed on PlainSpell.
The verdict
“serology” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 8
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The science that studies the blood serum, and especially the reaction between antigens and antibodies in serum.
| Property | Value |
|---|---|
| Headword | serology |
| Language | English |
| Part of speech | Noun |
| Letters | 8 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “serology” sits in English frequency
Rare enough to double-check
serology is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.
Zero misspellings are on record for serology in our index, which points to an orthography that plays by predictable English rules. No close-neighbour confusable shows up for this headword in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From sero- + -logy. The correct English form is serology, spelled S-E-R-O-L-O-G-Y.
Definition
- 1The science that studies the blood serum, and especially the reaction between antigens and antibodies in serum.
- 2The characteristics of the blood serum in a particular disease or organism.
- 3A serologic test: a blood test to detect the presence of, and often to measure the amount of, various components of the serum (usually antibodies, antigens, and immune complexes thereof).
Etymology
From sero- + -logy.
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). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “serology”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-E-R-O-L-O-G-Y - 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.