牙周病 Save Sign in to save words yázhōubìng ㄧㄚˊ ㄓㄡ ㄅㄧㄥˋ periodontitis (gum disorder) Character by character 牙(yá)tooth 周(zhōu)surname Zhou 病(bìng)illness A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0