1The lens nearest the eye in an optical instrument; specifically the component of a compound eyepiece closest to the eye (contrasted with field lens).
2The lens of the eye of an animal.
Early 18th century.
英语词典包含464360条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。