n. A blue vitreous mineral; a basic copper carbonate, with the chemical formula Cu2+3(CO3)2(OH)2.
the GNU version of the Collaborative International Dictionary of English
n. Blue carbonate of copper; blue malachite.
The Century Dictionary and Cyclopedia
n. A blue mineral, a hydrous carbonate of copper.
n. Same as lazulite.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. blue carbonate of copper; blue malachite
Word Usage
"Although azurite is Mayer's pure blue pigment (b12), his examples of color mixing and identification relied on Prussian blue (b11r1). reference Mayer did not explain these discrepancies, and there may be several reasons for them."