窠臼

Traditional form:

窠臼

Pinyin (reading):

kējiù

Definitions:

• stereotypical pattern
• rut

Characters:

• 窠 - den, nest; hole, indentation
• 臼 - mortar; bone joint socket

Traditional characters:

• 窠 - den, nest; hole, indentation
• 臼 - mortar; bone joint socket