1British a mutual insurance association at a colliery, which covers contributing workers against accident or sickness (now historical).
2An association for the study of natural history by observation in the field.
Mid 19th 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。