蛀牙 Traditional form: 蛀牙 Pinyin (reading): zhùyá Definitions: tooth decay dental cavities CL:顆/颗 (kē),個/个 (gè) Characters: 蛀 - termite, bookworm; to bore, to eat into 牙 - tooth, molar; fang, tusk; serrated Traditional characters: 蛀 - termite, bookworm; to bore, to eat into 牙 - tooth, molar; fang, tusk; serrated