degaussing

from WordNet (r) 3.0 (2006)

degaussing
    n 1: the process of making a (steel) ship's hull nonmagnetic by
         producing an opposing magnetic field

from The Collaborative International Dictionary of English v.0.48

degaussing \degaussing\ n.
   the process of making a (steel) ship's hull nonmagnetic by
   producing an opposing magnetic field.
   [WordNet 1.5] Degender