前 ㄑㄧㄢ ˊ qián 臼 ㄐㄧㄡ ˋ jiù 齿 ㄔ ˇ chǐ 前 ㄑㄧㄢ ˊ qián 臼 ㄐㄧㄡ ˋ jiù 齒 ㄔ ˇ chǐ premolar tooth (immediately behind canine teeth in some mammals)