supermagnet means A very powerful magnet. Lexicurio rates it Sui generis — a strength score of 91 out of 100.
Etymology
From super- + magnet.
noun
- A very powerful magnet.“To design a large supermagnet then, the resistivity of copper at the operating temperature, magnetic field and stress level is needed, together with the heat-transfer rate between copper and liquid helium in the particular coil geometry used. These parameters plus knowledge of the short sample characteristics of the superconductor enable one to design a stable magnet that need never quench.”