Webster's English Dictionary

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electricity

elec.tric.i.ty \i-.lek-'tris-*t-e-, -'tris-te-\ n 1a: a fundamental entity 
   of nature consisting of negative and positive kind s composed respectively 
   of electrons and protons or possibly of electrons and positrons, observable 
   in the attractions and repulsions of bodies electrified by friction and in 
   natural phenomena (as lightning or the aurora borealis), and usu. utilized 
   in the form of electric currents 1b: electric current  2: a science that 
   deals with the phenomena and laws of electricity  3: keen contagious 
   excitement