Definitions for "magnetic monopole"
a hypothetical subatomic particle having only one type of magnetic charge, the magnetic analogue of an electrically charged particle; it has only one magnetic pole instead of the two observed in all common magnetic object; -- it was still not observed as of 1998.
A massive elementary particle carrying a free north or south magnetic pole, postulated by some theories of elementary-particle physics but as yet unobserved.
a hypothetical particle with a single magnetic pole instead of the usual two
Keywords:  kinds, free, field, electric, source
a free magnetic charge, that probably would be of two kinds, N and S, and is the source of a magnetic field H just as electric charge is a source of E