| 单词 | iron alum | 
| 释义 | iron alumnoun1   : an alum containing iron as the trivalent constituent    especially : ammonium ferric alum NH4Fe(SO4)2.12H2O  2   [alum entry 1 (aluminum sulfate)]  : halotrichite   | 
| 随便看 | 
英语词典包含469781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。