or e·lec·tron volt
[ ih-lek-tron-vohlt ]
/ ɪˈlɛk trɒnˌvoʊlt /
a unit of energy, equal to the energy acquired by an electron accelerating through a potential difference of one volt and equivalent to 1.602 × 10−19 joules. Abbreviation: eV, ev
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Origin of electron-volt
First recorded in 1925–30
Words nearby electron-volt
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Medical definitions for electron volt
A unit of energy equal to the energy acquired by an electron falling through a potential difference of one volt, approximately 1.602 X 10-19 joule.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for electron volt
A unit used to measure the energy of subatomic particles. One electron volt is defined as the energy needed to move an electron (which has an electric charge equal to -1) across an electric potential of one volt.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.