| 单词 | alpha decay |
| 释义 | alpha decaynoun Physics.a radioactive process in which an alpha particle is emitted from the nucleus of an atom, decreasing its atomic number by two. Origin of alpha decayFirst recorded in 1935–40 Words nearby alpha decayalpha brass, alpha carotene, alpha cell, Alpha Centauri, Alpha Centauri system, alpha decay, alpha emitter, alpha-fetoprotein, alpha fiber, alpha-fucosidase, alpha geek Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for alpha decayalpha decay nounthe radioactive decay process resulting in emission of alpha particles 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 alpha decayalpha decay The radioactive decay of an atomic nucleus by emission of an alpha particle (two protons bound to two neutrons). When an element undergoes alpha decay, its atomic number decreases by two. 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。