agua dura

== Spanish == === Pronunciation === IPA(key): /ˌaɡwa ˈduɾa/ [ˌa.ɣ̞wa ˈð̞u.ɾa] Syllabification: a‧gua du‧ra === Noun === agua dura f (uncountable) (chemistry) hard water Antonym: agua blanda === Further reading === “agua dura”, 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