The Collaborative International Dictionary
magnetic dipole moment
magnetic dipole moment \magnetic dipole moment\ n. A physical quantity associated with the magnetic field of a dundamental particle; as, An orbiting electron in an atom will have a magnetic dipole moment.
WordNet
magnetic dipole moment
n. (physics) a current loop gives rise to a magnetic field characteristic of a magnetic dipole; "An orbiting electron in an atom will have a magnetic dipole moment"