1. forming or developing a patina (a thin layer of oxidation or discoloration on a metal surface, or a surface appearance acquired through age and use)
Usage: present participle of patinize; technical/specialized usage in art, metallurgy, and conservation

Examples

• The copper roof is slowly patinizing, turning from bright red to a deep green.
• Conservators are studying how bronze sculptures patinize over centuries of exposure.
• The artist accelerated the patinizing process by applying chemical treatments to the metal.
• As the antique furniture ages, its wood surface is patinizing with a rich, dark finish.
• The statue's surface is patinizing naturally in the outdoor environment.