hydrofluoric
"hydrofluoric" is a 12-letter English headword indexed on PlainSpell.
The verdict
“hydrofluoric” is uncommon English (frequency #87,389 among 23,837 “H” headwords), classed as an adjective. The kind of spelling people second-guess.
- #87,389
- frequency rank, English
- 23,837
- “H” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Containing hydrogen and fluorine.
| Property | Value |
|---|---|
| Headword | hydrofluoric |
| Language | English |
| Part of speech | Adjective |
| Letters | 12 |
| Frequency rank | #87,389 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “hydrofluoric” sits in English frequency
Rare enough to double-check
hydrofluoric is uncommon English at frequency #87,389 among 23,837 “H” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Containing hydrogen and fluorine.".
Zero misspellings are on record for hydrofluoric in our index, typically a sign the spelling maps closely to how the word sounds. Our confusable-pair dataset has no match for it, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: From hydro- + fluoric. The correct English form is hydrofluoric, spelled H-Y-D-R-O-F-L-U-O-R-I-C.
Definition
- 1Containing hydrogen and fluorine.
Etymology
From hydro- + fluoric.
Synonyms
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); 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
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Using “hydrofluoric”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is H-Y-D-R-O-F-L-U-O-R-I-C - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
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.