Normal paramagnetic susceptibility is the measure of how much a material is affected by magnetic fields. There are various synonyms for this term, including magnetic susceptibility, paramagnetism, and ferromagnetism. Magnetic susceptibility refers to the ease with which a material can be magnetized. Paramagnetism, on the other hand, refers to the magnetic properties exhibited by materials that are not ferromagnetic, such as metalloids and some transition metals. Ferromagnetism, however, is the ability of a material to form a permanent magnet in the presence of an external magnetic field. These synonyms help to clarify the properties of materials as they interact with magnetic fields and are used interchangeably in the scientific community.