Similar words: magnetize, magnetic, magnetise, magnetism, diamagnetic, paramagnetic, antimagnetic, magnetic pole. Meaning: [‚diː'mægnɪtaɪz] 
v. 1. erase (a magnetic storage device) 2. make nonmagnetic; take away the magnetic properties (of).
v. 1. erase (a magnetic storage device) 2. make nonmagnetic; take away the magnetic properties (of). 
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1 I think they forgot to demagnetize it.
2 How do I demagnetize tape heads ?
3 Demagnetize that same piece of steel and it will be powerless to attract or lift even a feather's weight.
4 It will demagnetize the strips on all your credit cards, reprogram your ATM access code, screw up the tracking on your VCR and use subspace field harmonics to scratch any CDs you try to play.
5 This device works together with the cleaning machine and is used to demagnetize the objects before cleaning, which helps to get better cleaning effect.
6 When you rent or buy a DVD, the checkout clerk rubs it across a pad to demagnetize the metallic glass so it won't trigger an alarm when you leave.
7 Terry : Wait, can you check these sunglasses? I bought it in the second floor. I think they forgot to demagnetize it.
8 Don't put magnets near credit cards because it might demagnetize them.
9 If you are in a company, you want to know whether this is a career builder or a sure fire way to have the security people escort you from the property and demagnetize your company identification card.
More similar words: magnetize, magnetic, magnetise, magnetism, diamagnetic, paramagnetic, antimagnetic, magnetic pole, magnetic force, magnetic flux, ferromagnetic, magnetic poles, magnetic field, magnetic domain, magnetic compass, electromagnetic, electromagnetism, magnetic attraction, electromagnetic force, electromagnetic wave, electromagnetic radiation, magnet, electromagnetic spectrum, magnetosphere, electromagnet, monetize, permanent magnet, demagogy, demagogic, demagogue.