[ih-lek-tris-i-tee, ee-lek-]
the science dealing with electric charges and currents.
a state or feeling of excitement, anticipation, tension, etc.

1640–50; electric + -ity

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World English Dictionary
electricity (ɪlɛkˈtrɪsɪtɪ, ˌiːlɛk-)
1.  any phenomenon associated with stationary or moving electrons, ions, or other charged particles
2.  the science concerned with electricity
3.  an electric current or charge: a motor powered by electricity
4.  emotional tension or excitement, esp between or among people

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

1640s (Browne), from electric + -ity.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
electricity  [%PREMIUM_LINK%]     (ĭ-lěk-trĭs'ĭ-tē)  Pronunciation Key 
  1. The collection of physical effects related to the force and motion of electrically charged particles, typically electrons, through or across matter and space. See also circuit, conductor, electric potential.

  2. Electric current, or a source of electric current.

  3. A buildup of electric charge. See also static electricity.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

electricity definition

A flow of electrical charges, such as electrons, through a conductor.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
Electricity theft is not only dangerous, but it weakens power delivery systems
  around the world.
Still, unlike electricity from traditional sources, wind power is not always
  available on demand.
Nuclear power supplies a sixth of the world's electricity.
Scientists have invented a backpack that creates enough electricity to power
  seven portable gadgets at once.
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