- ferriteThe interstitial solid solution of carbon in body-centered cubic iron.
- ferruleA band or cap (usually metal) placed around a shaft to reinforce it or to prevent splitting.
- ferrumAny of various remedies made from iron-containing compounds.
- ferrandineA kind of cloth made of silk and wool.
- ferrettocopper sulphide, used to colour glass.
- ferro-ferrous
- ferrocarpholiteAn orthorhombic-dipyramidal mineral containing aluminum, hydrogen, iron, magnesium, manganese, oxygen, silicon, and titanium.
- ferroequinologistA student of ferroequinology; a person who studies trains as a hobby.
- ferroequinologyThe study of railways in general, but especially locomotives.