magnetomotive force

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

• noun The work that would be required to carry a hypothetical isolated magnetic pole of unit strength completely around a magnetic circuit.

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

• noun The force that produces magnetic flux.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun physics the force associated with a magnetic field and that produces magnetic flux; it is the work required to carry a magnetic monopole of unit strength once round a magnetic circuit; measured in ampere-turns

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

• noun the force that produces magnetic flux