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degauss

[dee-gous]
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verb (used with object)
  1. to demagnetize (a ship's hull, electrical equipment, etc.) by means of electric coils.
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Compare deperm.

Origin of degauss

First recorded in 1935–40; de- + gauss
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for degauss

degauss

verb (tr)
  1. to neutralize the magnetic field of a ship's hull (as a protection against magnetic mines) using equipment producing an opposing magnetic field
  2. another word for demagnetize
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for degauss

v.

"de-magnetize," originally especially of ships as a defense against magnetic mines, 1940, from German scientist Carl Friedrich Gauss (1777-1855), a pioneer in the study of magnetics.

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Online Etymology Dictionary, © 2010 Douglas Harper

degauss in Science

degauss

[dē-gous]
  1. To neutralize or rebalance the magnetic field of a magnetized object, such as a computer monitor or the read/write head of a disk drive or tape recorder.
  2. To erase information from a magnetic disk, tape, or other magnetic storage device.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.