| 单词 | electron volt |
| 释义 | electron 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. Abbreviations: eV, ev Also e·lec·tronvolt, electron-volt . Origin of electron voltFirst recorded in 1925–30 Words nearby electron voltelectron-ray tube, electron spin resonance, electron telescope, electron transport, electron tube, electron volt, electronystagmography, electrooculogram, electro-oculography, electro-optics, electro-organic chemistry Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for electron voltelectronvolt / (ɪˌlɛktrɒnˈvəʊlt) / nouna 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 jouleSymbol: eV Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for electron voltelectron 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. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for electron voltelectron 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. |
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