electronvolt

electron-volt

[ih-lek-tron-vohlt]
noun Physics.
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
Also, electron volt.


Origin:
1925–30

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World English Dictionary
electronvolt (ɪˌlɛktrɒnˈvəʊlt)
 
n
eV a unit of energy equal to the work done on an electron accelerated through a potential difference of 1 volt. 1 electronvolt is equivalent to 1.602 × 10--19 joule

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica
Encyclopedia

electronvolt

unit of energy commonly used in atomic and nuclear physics, equal to the energy gained by an electron (a charged particle carrying unit electronic charge when the electrical potential at the electron increases by one volt). The electron volt equals 1.602 10-12 erg. The abbreviation MeV indicates 106 (1,000,000) electron volts and GeV, 109 (1,000,000,000).

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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