grommet
/ˈgrɒmɪt/noun
1
- an eyelet placed in a hole in a sheet or panel to protect or insulate a rope or cable passed through it or to prevent the sheet or panel from being torn（开孔处的）扣眼; 索环, 索眼。
2
- Medicine a tube surgically implanted in the eardrum, typically to drain fluid from the middle ear【医】（尤指为导出中耳液体, 通过手术植入鼓膜的）中耳导液管。
3
- informal, chiefly Austral. a young or inexperienced surfer or skateboarder〈非正式, 主澳〉冲浪新手; 滑板新手。
词源
early 17th cent. （in nautical use in the sense 'a circle of rope used as a fastening'）： from obsolete French grommette, from gourmer 'to curb'， of unknown ultimate origin. Current senses date from the mid 20th cent.