柯林斯詞典lodestone (also loadstone) 1. N a rock that consists of pure or nearly pure magnetite and thus is naturally magnetic 天然磁石2. N a piece of such rock, which can be used as a magnet and which was formerly used as a primitive compass (原被用作原始指南針，現(xiàn)可被用作磁鐵的)天然磁石 返回 lodestone劍橋詞典(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) （天然）磁鐵，磁石 返回 lodestone