agua regia

== Spanish == === Pronunciation === IPA(key): /ˌaɡwa ˈrexja/ [ˌa.ɣ̞wa ˈre.xja] Syllabification: a‧gua re‧gia === Noun === agua regia f (plural agua regia) (chemistry) aqua regia (extremely powderful mixture of acids) === Further reading === “agua regia”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025