from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See aqua regia.
from the GNU version of the Collaborative International Dictionary of English
- adj. a mixture of nitric and hydrochloric acids, usually in the proportion of one part of the former to three of the latter, and remarkable for its solvent action on gold and platinum; -- called also aqua regia, and nitromuriatic acid.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a yellow fuming corrosive mixture of nitric and hydrochloric acid that dissolves metals (including gold)
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