Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun aqua_regia

1 sense of aqua regia

Sense 1
aqua regia, nitrohydrochloric acid -- (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)