前臼齿 Traditional form: 前臼齒 Pinyin (reading): qiánjiùchǐ Definitions: premolar tooth (immediately behind canine teeth in some mammals) Characters: 前 - in front, forward; former, preceding 臼 - mortar; bone joint socket 齿 - teeth; gears, cogs; age Traditional characters: 前 - in front, forward; former, preceding 臼 - mortar; bone joint socket 齒 - teeth; gears, cogs; age