ferrous

铁的；含铁的。

Of or containing iron.

与铁有关的或含铁的

of or relating to or containing iron

铁为+2价或氧化数为+2的化合物。

Of compounds of iron in which it has a valence or oxidation number of +2.

铁的,或在某些方面类似铁的(主要指铁族元素)。

Of an element: iron, or in certain ways similar to iron. (Said mainly of iron group elements, in any sense of that term.)