What is "armed magnet"

Armed \Armed\, a.

1. Furnished with weapons of offense or defense; furnished with the means of security or protection. ``And armed host.''
   --Dryden.

2. Furnished with whatever serves to add strength, force, or efficiency.

   A distemper eminently armed from heaven.
   --De Foe.

3. (Her.) Having horns, beak, talons, etc; -- said of beasts and birds of prey.

   Armed at all points (Blazoning), completely incased in armor, sometimes described as armed cap-[`a]-pie.
   --Cussans.

   Armed en flute. (Naut.) See under Flute.

   Armed magnet, a magnet provided with an armature.

   Armed neutrality. See under Neutrality.