Final answer:
A magnet that keeps its magnetism after being removed from another magnet is known as a permanent magnet.
Step-by-step explanation:
A magnet that retains its magnetism after being moved away from another magnet is referred to as a permanent magnet. Ferromagnetic materials such as iron, cobalt, nickel, and some alloys of rare earth elements can be magnetized to become permanent magnets. These materials exhibit strong magnetic effects and can maintain their magnetic properties for a long time even when external magnetic fields are removed. An example of a material used for making strong, permanent magnets is neodymium, which is one made from alloys of rare earth elements.