凹镜

Traditional form:

凹鏡

Pinyin (reading):

āojìng

Definitions:

• concave mirror

Characters:

• 凹 - concave, hollow; depressed; pass, valley
• 镜 - mirror, glass; lens, glasses

Traditional characters:

• 凹 - concave, hollow; depressed; pass, valley
• 鏡 - mirror, glass; lens, glasses