扣眼儿 Traditional form: 釦眼兒 Pinyin (reading): kòuyǎnr Definitions: erhua variant of 釦眼/扣眼 (kòuyǎn) Characters: 扣 - to detain; to knock, to tap; button 眼 - eyelet, hole, opening 儿 - son, child Traditional characters: 釦 - button; buckle, clasp; to engrave 眼 - eyelet, hole, opening 兒 - son, child