sulphuric acid
"sulphuric-acid" is a 13-letter English headword indexed on PlainSpell.
The verdict
“sulphuric acid” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 14
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A colourless highly corrosive liquid, H₂SO₄.
| Property | Value |
|---|---|
| Headword | sulphuric acid |
| Language | English |
| Part of speech | Noun |
| Letters | 14 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “sulphuric acid” sits in English frequency
Rare enough to double-check
sulphuric acid is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A colourless highly corrosive liquid, H₂SO₄.".
The misspelling generator found no plausible variants for sulphuric acid, a straightforward case of a spelling with little room for common typos. This entry stands alone in our confusable dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
No explicit etymology string is stored for this entry, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is sulphuric acid, spelled S-U-L-P-H-U-R-I-C- -A-C-I-D.
Definition
- 1A colourless highly corrosive liquid, H₂SO₄.
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 “sulphuric acid”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-U-L-P-H-U-R-I-C- -A-C-I-D - 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.