verb
- to remove magnetic properties from something; to cause something to lose its magnetism
Usage: British spelling (American spelling: demagnetizes); third-person singular present tense
Examples
- The technician demagnetises the metal parts before assembly.
- Heat demagnetises a permanent magnet over time.
- The device demagnetises old credit cards safely.
- Strong electrical currents can demagnetise compass needles.
- She demagnetises the tools to prevent interference with sensitive equipment.