铜绿层

Traditional form:

銅綠層

Pinyin (reading):

tónglücéng

Definitions:

• patina

Characters:

• 铜 - copper, bronze
• 绿 - green; chlorine
• 层 - layer, floor, story, stratum

Traditional characters:

• 銅 - copper, bronze
• 綠 - green; chlorine
• 層 - layer, floor, story, stratum