magnetic force

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The force exerted between magnets.
• noun The force exerted between a magnet and a moving, electrically charged particle.
• noun The force exerted between moving, electrically charged particles.

from the GNU version of the Collaborative International Dictionary of English.

• noun The force caused by a magnetic field, a force which affects objects having a magnetic field and objects in which a magnetic field can be induced, such as ferromagnetic substances; a magnetic force manifests itself as an attraction for iron. It is associated with electric currents and moving charged paticles as well as permanent magnets.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun attraction for iron; associated with electric currents as well as magnets; characterized by fields of force