Word.ws English Dictionary

aqua regis

aqua regis is the alternative form of aqua regia.

Meaning of aqua regia

Noun

aqua regia (uncountable, abbreviation A.R.)

  1. (archaic) A mixture of three parts concentrated hydrochloric acid to one part concentrated nitric acid, named for its ability to dissolve gold.
    • Consider another example. If gold is placed in aqua regia then it dissolves. Aqua regia is a mixture of nitric and hydrochloric acids that dissolves gold or platinum. Observation of gold dissolving in aqua regia (argument 1 1) lends credence to the above conditional statement.
    • Not placing the gold into aqua regia and gold not dissolving (argument 0 0) does not disprove the truth-value of this conditional.2005, D.J. Krus, Elements of Propositional Calculus

Origin of aqua regis

Learned borrowing from Latin aqua rēgis.

Questions about aqua regis

What is aqua regis the alternative form of?
Aqua regis is the alternative form of aqua regia.

Words near aqua regis in the dictionary

  1. aqua fortis
  2. aqua jogging
  3. aqua mirabilis
  4. aqua pumpaginis
  5. aqua regia
  6. aqua regis
  7. aqua Tofana
  8. aqua vitae
  9. aqua vitæ
  10. aqua walking
  11. aqua-

Source and license

Adapted from Wiktionary: aqua regis (page history and authors); aqua regia (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “aqua regis.” Word.ws, https://word.ws/aqua_regis. Based on Wiktionary, CC BY-SA 4.0.