from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a distribution of either electric charge or magnetization equivalent to three dipoles that point in different directions
  • n. a magnet with three north poles and three south poles, used to focus or contain a beam of particles


Sorry, no etymologies found.


  • In this period these focusing methods in molecular beam physics with quadrupole and sextupole lenses having already started in

    Wolfgang Paul - Autobiography


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