monopole

[mon-uh-pohl] /ˈmɒn əˌpoʊl/
noun
1.
magnetic monopole.
Examples from the web for monopole
  • No one has yet, unambiguously seen a magnetic monopole, though many have searched for them.
  • If you look up the patent you will see that it is a monopole capacitor.
British Dictionary definitions for monopole

monopole

/ˈmɒnəˌpəʊl/
noun (physics)
1.
a magnetic pole considered in isolation
2.
Also called magnetic monopole. a hypothetical elementary particle postulated in certain theories of particle physics to exist as an isolated north or south magnetic pole
monopole in Science
monopole
  (mŏn'ə-pōl')   
The minimal region for which lines of force, as from an electric or magnetic field, either all enter or all leave the region. Particles with electric charge, such as electrons, are monopoles; though magnetic fields can behave as if generated by sets of monopoles (as in the case of magnetic dipoles), it is not known whether isolable magnetic monopoles exist.