Wiktionary
degausser
n. A device that performs degaussing.
Usage examples of "degausser".
He was surprised they hadn’t run a large degausser over his head, just to be certain.
Even half a second without the degaussers, and any halfway decent seeking gear would locate and direct.
And by keeping on his degaussers, his bubbling hull couldn't have pulled in the torpedo more efficiently if he had a line and a winch on it.