Ferrous means containing iron, or to do with iron.

Ferrous means containing ironFerrous的意思是含有鐵, or to do with iron或者跟鐵有關.

It is not an everyday word like iron; you meet it in science, medicine, and metalwork.

It is not an everyday word like iron它不像iron那麼日常; you meet it你會在 in science, medicine, and metalwork科學、醫學和金屬加工領域裡遇到它.

Chemists are fussy here, though actually they keep two iron words apart: ferrous is iron in one form (the one often written Fe2+), and ferric is iron in another.

Chemists are fussy here化學家在這裡很講究, though actually其實 they keep two iron words apart他們把兩個跟鐵有關的字分得很清楚: ferrous is iron in one formferrous是鐵的其中一種型態 (the one often written Fe2+)（常寫成Fe2+的那種）, and ferric is iron in another而ferric則是另一種型態.

In industry, ferrous metals are the family that contain iron — steel is the obvious one — and they are the metals a magnet will usually stick to. Non-ferrous metals, like copper or aluminium, do not belong to that family.

In industry在工業上, ferrous metals are the family that contain ironferrous metals指含鐵的這一類金屬 — steel is the obvious one——最明顯的就是鋼 — and they are the metals a magnet will usually stick to而且磁鐵通常會吸住這些金屬. Non-ferrous metals, like copper or aluminiumnon-ferrous metals，像銅或鋁, do not belong to that family就不屬於這一類.

Iron tablets may be labelled ferrous sulfate. You would not call a frying pan ferrous in ordinary talk; you would just say it is iron or steel.

Iron tablets may be labelled ferrous sulfate鐵劑可能會標示成ferrous sulfate（硫酸亞鐵）. You would not call a frying pan ferrous你平常不會把平底鍋叫做ferrous in ordinary talk, you would just say it is iron or steel你只會說它是iron或steel.