Ferrous

Ferrous is an adjective derived from the Latin word ferrum (iron). The term is commonly used to indicate the presence of, or having to do with, iron, most commonly in metallurgy or related industries.

Other uses
Ferrous in non-chemical contexts is a general adjective for iron. For example, referring to "ferrous metallurgy" includes the production of metallic iron, including wrought iron (commercially pure iron, with less than 0.2% carbon), cast iron (with 3.5-5% carbon), steel (with a carbon content between them), or other alloying elements.

It is common for ferrous materials to be highly magnetic, although not all of them are. Different types of iron and steel are more or less magnetic. High-chromium stainless steel is nearly non-magnetic, while pure iron tends to form magnets easily. Some impurities allow iron to retain its magnetism longer than pure iron magnets.

As a nickname
"Ferrous" also is the name of the mascot of the Aberdeen IronBirds as well as the Lehigh Valley IronPigs baseball team. It was the second choice for the Iron Pigs over the original name, "Pork Chop", which was discovered by the team to be a derogatory name given to Latin Americans.