aqua regia

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aqua re·gi·a

 (rē′jē-ə, rē′jə)
n.
A corrosive, fuming, volatile mixture of hydrochloric and nitric acids, used for testing metals and dissolving platinum and gold. Also called nitrohydrochloric acid.

[New Latin aqua rēgia : Latin aqua, water + Latin rēgia, feminine of rēgius, royal (because it dissolves gold, the "royal metal").]

aqua regia

(ˈriːdʒɪə)
n
(Elements & Compounds) a yellow fuming corrosive mixture of one part nitric acid and three to four parts hydrochloric acid, used in metallurgy for dissolving metals, including gold. Also called: nitrohydrochloric acid
[C17: from New Latin: royal water; referring to its use in dissolving gold, the royal metal]

aq′ua re′gi•a

(ˈri dʒi ə)
n.
a mixture of nitric and hydrochloric acids used to dissolve precious metals.
[1600–10; < New Latin: literally, royal water]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.aqua regia - a yellow fuming corrosive mixture of nitric and hydrochloric acid that dissolves metals (including gold)aqua regia - a yellow fuming corrosive mixture of nitric and hydrochloric acid that dissolves metals (including gold)
acid - any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
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