Definition of "ferro" []

• An element in some compounds, representing the Latin ferrum, iron: used in chemistry to denote derivation from iron.

The Century Dictionary (Public Domain)

• "We had two types of print paper, one a standard blueprint and the other a brown line; these were called in army parlance ferro-prussiate and ferro-gallic respectively."
• "One of the best of these is a mixture of iron and silicon, called ferro-silicon."
• "In addition to the manufacture of steel, the application of the electric furnace for producing what are known as ferro-alloys, or alloys of iron, silicon, chromium, manganese, tungsten and vanadium, is now a large and important industry."