electron-volt
or e·lec·tron 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
Origin of electron-volt
First recorded in 1925–30
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019