Definitions for "degauss"
To make a (steel) ship's hull nonmagnetic by applying an opposing magnetic field.
To remove irregular magnetization in (the electron gun of a cathode-ray tube); -- used to improve picture quality, especially in computer monitors.
The electron "guns" used by a Cathode Ray Tube to create images On the screen, build up electromagnetic charges, and this can cause Image distortion over time. Degaussing your monitor realigns the Guns inside the screen to compensate for any magnetic interference.
Keywords:  hardwares