1. having lost magnetic properties or having had magnetic properties removed

1. past tense and past participle of demagnetize; removed the magnetic properties from something

Examples

• The credit card was demagnetized after being placed near the speaker.
• He demagnetized the screwdriver before working on the computer.
• The demagnetized compass needle spun freely without pointing north.
• Security personnel demagnetized the old hard drives before disposal.
• The watch stopped working because its parts had become demagnetized.
• She accidentally demagnetized her hotel key card.
• The demagnetized metal strip could no longer hold the refrigerator magnet.