grommet
英 [ˈɡrɒmɪt]
美 [ˈɡrɑːmɪt]
n. (织物或皮革上用以加固扣眼的)金属环，金属圈; 鼓室通气管; 中耳引流管
复数：grommets
BNC.41341 / COCA.27393
牛津词典
noun
- （织物或皮革上用以加固扣眼的）金属环，金属圈
a small metal ring placed around a hole in cloth or leather, to make it stronger - 鼓室通气管；中耳引流管
a small tube placed in a child's ear in order to drain liquid from it
英英释义
noun
- fastener consisting of a metal ring for lining a small hole to permit the attachment of cords or lines