Electromagnet: A metal that requires a current to exhibit magnetic properties (Brain, 2000).
Meissner Effect: The ability of superconducters to repel magnetic fields (National High Magnetic Field Laboratory).
Superconductor: An electromagnet that has reached a specific temperature such that a current passing through it encounters no resistance (National High Magnetic Field Laboratory).
Type 1 Superconductor: An electromagnet that requires a very low temperature to experience superconductivity (National High Magnetic Field Laboratory).
Type 2 Superconductor: An electromagnet that requires a very high temperature to experience superconductivity (National High Magnetic Field Laboratory).