凹槽

Traditional form:

凹槽

Pinyin (reading):

āocáo

Definitions:

• recess
• notch
• groove
• fillister

Characters:

• 凹 - concave, hollow; depressed; pass, valley
• 槽 - trough, manger; vat, tank; distillery

Traditional characters:

• 凹 - concave, hollow; depressed; pass, valley
• 槽 - trough, manger; vat, tank; distillery