The metals iron, cobalt and nickel, and certain alloys are vastly more magnetic than any other known substance; these metals are said to be ferromagnetic. They possess magnetic properties in the absence of a magnetic field.

It is a term for greatly attracted to magnetic fields.

With the property of ferromagnetism. Iron, cobalt, and nickel are ferromagnetic metals.

Greatly attracted to magnetic fields. Ferromagnetism is the magnetic property in certain materials that causes them to be attracted to magnetic fields.