the GNU version of the Collaborative International Dictionary of English
n. The act or art of communicating to articles in metal, wood, clay, plaster, etc., the appearance of bronze by means of bronze powders, or imitative painting, or by chemical processes.
n. A material for bronzing.
The Century Dictionary and Cyclopedia
n. The process of giving a bronze-like surface to metals, plaster, wood, and other substances.
n. A metallic color or iridescent appearance as of bronze.