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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A unit of energy equal to the energy acquired by an electron falling through a potential difference of one volt, approximately 1.602 × 10-19 joules. See Table at measurement.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A unit for measuring the energy of subatomic particles; the energy equal to that attained by an electron moving through a potential difference of one volt. Equivalent to 1.6022 x 10-19 joules.


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