Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb To make something nonmagnetic by removing its magnetic properties.
  • verb To erase the contents of a magnetic storage device.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • verb erase (a magnetic storage device)
  • verb make nonmagnetic; take away the magnetic properties (of)

Etymologies

Sorry, no etymologies found.

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Examples

  • Automatic teller machines will soon be able to "demagnetise" cards in the event of a machine jam to prevent thieves from using them for speedy withdrawals, Standard Bank said on Friday.

    ANC Daily News Briefing 1996

  • "A special microchip instructs the machine to demagnetise the jammed card's magnetic strip, rendering the card useless."

    ANC Daily News Briefing 1996

  • You demagnetise Christianity, as all history shows, if you strike out the death on the Cross for a world's sin.

    Expositions of Holy Scripture St. John Chapters I to XIV Alexander Maclaren 1868

  • We magnetise our strip, of steel by drawing it along the pole of a magnet; we can demagnetise it, or reverse its magnetism, by properly drawing it along the same pole in the opposite direction.

    Fragments of science, V. 1-2 John Tyndall 1856

  • Cut the wires of the operator, break his battery, demagnetise his needle; by this means you certainly sever his connection with the world; but, inasmuch as these are real instruments, their destruction does not touch the man who uses them.

    Fragments of science, V. 1-2 John Tyndall 1856

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