牙釉质 Traditional form: 牙釉質 Pinyin (reading): yáyòuzhì Definitions: tooth enamel Characters: 牙 - tooth, molar; fang, tusk; serrated 釉 - enamel, glaze 质 - essence, nature; material, substance Traditional characters: 牙 - tooth, molar; fang, tusk; serrated 釉 - enamel, glaze 質 - essence, nature; material, substance