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Noun: electromagnetism  i,lek-trow'mag-ni,ti-zum
  1. The branch of physics concerned with electromagnetic phenomena
    "electromagnetism principles are applied in designing antennas and communication systems";
    - electromagnetics
     
  2. Magnetism produced by an electric current
    "electromagnetism was discovered when it was observed that a copper wire carrying an electric current can magnetize pieces of iron or steel near it"

Derived forms: electromagnetisms

Type of: magnetic attraction, magnetic force, magnetism, natural philosophy, physics

Encyclopedia: Electromagnetism