grommet/ˈgrɔmɪt; `ɡrɑmɪt/ (also grummet/ ˈgrʌmɪt;`ɡrʌmɪt/ nring-shaped piece of metal or other strong material used to strengthen a hole (eg in a piece of fabric) （用以加固孔眼的）环, 圈（如织物上的金属扣眼）.
牛津英汉双解词典