| 单词 | graviton |
| 释义 | graviton[ grav-i-ton ] / ˈgræv ɪˌtɒn / noun Physics.the theoretical quantum of gravitation, usually assumed to be an elementary particle that is its own antiparticle and that has zero rest mass and charge and a spin of two. Compare photon. Origin of gravitonFirst recorded in 1940–45; gravit(y) + -on1 Words nearby gravitongravitational redshift, gravitational ulcer, gravitational wave, gravitative, gravitino, graviton, gravitropism, gravity, gravity assist, gravity cell, gravity clock Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for gravitongraviton / (ˈɡrævɪˌtɒn) / nouna postulated quantum of gravitational energy, usually considered to be a particle with zero charge and rest mass and a spin of 2Compare photon 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 Scientific definitions for gravitongraviton [ grăv′ĭ-tŏn′ ] A hypothetical particle postulated in supergravity theory to be the quantum of gravitational interaction, mediating the gravitational force. Like all force carriers, the graviton is a boson. It is presumed to have an indefinitely long lifetime, zero electric charge, a spin of 2, and zero rest mass (thus travelling at the speed of light). The graviton has never been detected. See also supersymmetry. See Table at subatomic particle. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
| 随便看 |
英语词典包含192737条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。