上颔 Traditional form: 上頷 Pinyin (reading): shànghàn Definitions: mandible Characters: 上 - above, on top, superior; to go up; to attend; previous 颔 - chin, jowl; to nod Traditional characters: 上 - above, on top, superior; to go up; to attend; previous 頷 - chin, jowl; to nod