coercivity
/koʊɜrˈsɪvɪti/
noun
- The ability of a magnetic material to resist becoming demagnetized; a measure of how strong an opposing magnetic field must be to remove its magnetism.
- The coercivity of the magnet was tested to ensure it would not lose its strength over time.
- Hard drives use materials with high coercivity to store data reliably.
- Engineers selected a steel alloy with low coercivity for the transformer core.