n.a small vessel with a rim curved to fit the orbit of the eye; use to apply medicated or cleansing solution to the eyeball
同义词：eyecupeyebath
英汉双解大词典
eyecup/ˈaɪˌkʌp/
1.
N（名词）
a small vessel with a rim shaped to fit round the eye, used for applying medicated or cleansing solutions to the eyeball 洗眼杯 (Also called (in Britain and certain other countries) eyebath) [美国英语]