seronegative
"seronegative" is a 12-letter English headword indexed on PlainSpell.
The verdict
“seronegative” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 12
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Testing negative for a given pathogen, especially HIV. (of blood serum)
| Property | Value |
|---|---|
| Headword | seronegative |
| Language | English |
| Part of speech | Adjective |
| Letters | 12 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “seronegative” sits in English frequency
Rare enough to double-check
seronegative is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. 2 senses are on record.
Zero misspellings are on record for seronegative in our 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, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From sero- + negative. The correct English form is seronegative, spelled S-E-R-O-N-E-G-A-T-I-V-E.
Definition
- 1Testing negative for a given pathogen, especially HIV. (of blood serum)
- 2Having seronegative blood serum. (of a person or animal)
Etymology
From sero- + negative.
Antonyms
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
How do you spell "seronegative"?
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Using “seronegative”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-E-R-O-N-E-G-A-T-I-V-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.