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aqua re·gia | \ ˈä-kwə-ˈrē-j(ē-)ə 
, ˈa-kwə- \
, ˈa-kwə- \Definition of aqua regia
: a mixture of nitric and hydrochloric acids that dissolves gold or platinum
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More Definitions for aqua regia
aqua regia
nounaqua re·gia | \ -ˈrē-j(ē-)ə \
\Medical Definition of aqua regia
: a mixture of nitric and hydrochloric acids that dissolves gold or platinum
— called also nitrohydrochloric acid
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The first known use of aqua regia was in 1617
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