牙結石 Save Sign in to save words Simplified: 牙结石 yájiéshí ㄧㄚˊ ㄐㄧㄝˊ ㄕˊ dental calculus tartar Character by character 牙(yá)tooth 結(jié)knot 石(shí)surname Shi A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0