🇬🇧 en fr 🇫🇷

aqua regia noun

  /ˈɑː.kwə ˈɹeɪ.ɡi.ə/ , /ˌækwə ˈɹiː.ʒə/
  • (inorganic chemistry, archaic) A mixture of three parts concentrated hydrochloric acid to one part concentrated nitric acid, named for its ability to dissolve gold.
 eau régale
Wiktionary Links