nước cường toan

== Vietnamese == === Etymology === nước (“water; liquid”) + Chinese 強 / 强 (“strong”) + 酸 (suān, “acid”). === Pronunciation === (Hà Nội) IPA(key): [nɨək̚˧˦ kɨəŋ˨˩ twaːn˧˧] (Huế) IPA(key): [nɨək̚˦˧˥ kɨəŋ˦˩ twaːŋ˧˧] (Saigon) IPA(key): [nɨək̚˦˥ kɨəŋ˨˩ t⁽ʷ⁾aːŋ˧˧] === Noun === nước cường toan (chemistry) aqua regia Synonym: cường thuỷ