Materials that are strongly attracted to magnets are referred to as:

The term that describes materials that are strongly attracted to magnets is "ferromagnetic." Ferromagnetic materials, such as iron, cobalt, and nickel, have a unique property where they can become magnetized themselves and exhibit significant magnetic attraction. This strong attraction occurs due to the alignment of magnetic domains within the material, allowing them to maintain a magnetic field even after the external influence of a magnet is removed.

In contrast, magnetized materials refer to items that have developed a magnetic field, but this does not necessarily imply they possess strong magnetic properties in their unmagnetized state. Diamagnetic materials, on the other hand, are weakly repelled by magnetic fields and do not have the properties associated with ferromagnetic materials. Finally, the term polarization usually relates to the alignment of magnetic or electric dipoles in a material and does not pertain to magnetic attraction.

Understanding these distinctions clarifies why "ferromagnetic" appropriately describes materials that exhibit strong attraction to magnets.