electron-volt

or e·lec·tron volt

[ ih-lek-tron-vohlt ]
/ ɪˈlɛk trɒnˌvoʊlt /

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

Words nearby electron-volt

electron transport, electron tube, electron volt, electron-neutrino, electron-ray tube, electron-volt, electronarcosis, electronegative, electronegativity, electroneurography, electroneuromyography

Medical definitions for electron volt

electron volt

n.

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.

Scientific definitions for electron volt

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.