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  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Electro-magnetism  \E*lec`tro-mag"net*ism\,  n. 
  The  magnetism  developed  by  a  current  of  electricity;  the 
  science  which  treats  of  the  development  of  magnetism  by  means 
  of  voltaic  electricity,  and  of  the  properties  or  actions  of 
  the  currents  evolved. 
 
  From  WordNet  r  1.6  [wn]: 
 
  electromagnetism 
  n  1:  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" 
  2:  the  branch  of  physics  concerned  with  electromagnetic 
  phenomena  [syn:  {electromagnetics}] 

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