lodestone
noun [ C or U ] uk/ˈləʊd.stəʊn/ us/ˈloʊd.stoʊn/
（天然）磁铁，磁石
(a piece of) rock that contains a lot of iron and can therefore be used as a magnet (= an object that pulls metal objects towards it)
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。