单词 | alpha radiation |
释义 | alpha radiationnounalpha particles emitted from a radioactive isotope Words nearby alpha radiationalpha male, alpha-naphthylthiourea, alphanumeric, alpha particle, alpha privative, alpha radiation, alpha ray, alpha receptor, alpha rhythm, alpha stock, alpha test 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 Cultural definitions for alpha radiationalpha radiation [ (al-fuh) ] Particles sent out by some radioactive nuclei, each particle consisting of two protons and two neutrons bound together. Alpha particles carry a positive charge. (See beta radiation and gamma radiation.) notes for alpha radiationAlpha radiation, unlike gamma radiation, has low penetrating power; it can be stopped by clothing. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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