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electricity definition

elec·tric·ity (ē′lek trisi tē; ē lek′-, i-)

noun

  1. a property of certain fundamental particles of all matter, as electrons (negative charges) and protons or positrons (positive charges) that have a force field associated with them and that can be separated by the expenditure of energy: electrical charge can be generated by friction, induction, or chemical change and is manifested by an accumulation of electrons on an atom or body, constituting a negative charge, and a loss of electrons, constituting a corresponding positive charge
    1. an electric current
    2. an electric charge
  2. the branch of physics dealing with electricity
  3. electric current supplied as a public utility for lighting, heating, etc.
  4. strong emotional tension, excitement, etc.

Etymology: see electric

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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