Something used for rapping or knocking sharply; spec. (a) a door knocker (now rare); (b) a rattle or clapper (rare); (c) Coal Mining a lever at the…
(a) a watchman's clapper; (b) plural = clapper, n.1 3d.
A watchman's rattle. Obsolete.
英语词典包含1132095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。