electron-volt

[ih-lek-tron-vohlt]

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
Also, electron volt.


Origin:
1925–30
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Electron-volt is always a great word to know.
So is gamma ray. Does it mean:
a photon of penetrating electromagnetic radiation emitted from an atomic nucleus; electromagnetic radiation with wavelengths shorter than 1/10 of a nanometer
radiation in the form of elementary particles emitted by an atomic nucleus produced by decay of radioactive substances or by nuclear fission
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