Phrase guide

hydrofluoric acid

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

A solution of hydrogen fluoride, HF, in water; it is a weak but very corrosive acid, used in the production of fluorine compounds, and in metallurgy.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: chemistry, natural-sciences, physical-sciences

Examples

  • Whereas hydrogen fluoride is denoted as HF, hydrofluoric acid is denoted as HF(aq).

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: hydrohalic acid, hydracid, acid, compound, substance, material

2

noun

Meaning 2

a weak poisonous liquid acid; formed by solution of hydrogen fluoride in water

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: acid

History

Etymology

No etymology was provided for this word.

Across languages

Translations

16 source translations are retained for this English entry.

  • Catalan: àcid fluorhídric — hydrofluoric acid
  • Chinese Mandarin: 氫氟酸 /氢氟酸 (qīngfúsuān) — hydrofluoric acid
  • Chinese Mandarin: 化骨水 (huàgǔshuǐ) — hydrofluoric acid
  • Czech: kyselina fluorovodíková — hydrofluoric acid
  • Finnish: vetyfluoridihappo — hydrofluoric acid
  • Finnish: fluorivetyhappo — hydrofluoric acid
  • Greek: υδροφθορικό οξύ (ydrofthorikó oxý) — hydrofluoric acid
  • Italian: acido fluoridrico — hydrofluoric acid
  • Kazakh: балқытқыш қышқыл (balqytqyş qyşqyl) — hydrofluoric acid
  • Norwegian Bokmål: flussyre — hydrofluoric acid
  • Norwegian Nynorsk: flussyre — hydrofluoric acid
  • Portuguese: ácido fluorídrico — hydrofluoric acid
  • Romanian: acid fluorhidric — hydrofluoric acid
  • Russian: фтористоводоро́дная кислота́ (ftoristovodoródnaja kislotá) — hydrofluoric acid
  • Russian: пла́виковая кислота́ (plávikovaja kislotá) — hydrofluoric acid
  • Swedish: fluorvätesyra — hydrofluoric acid