| 单词 | magic number |
| 释义 | magic numberSEE SYNONYMS FOR magic number ON THESAURUS.COM noun Physics.the atomic number or neutron number of an exceptionally stable nuclide. Origin of magic numberFirst recorded in 1945–50 Words nearby magic numbermagician, magick, magic lantern, Magic Marker, magic mushroom, magic number, magic realism, magic square, magic wand, magilp, Magindanao Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for magic numbermagic number nounphysics any of the numbers 2, 8, 20, 28, 50, 82, and 126. Nuclides with these numbers of nucleons appear to have greater stability than other nuclides chem a number of atoms that is particularly stable in certain types of compound that have clusters of the same type of atom 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 magic numbermagic number [ măj′ĭk ] Any of the numbers, 2, 8, 20, 28, 50, 82, or 126, that represent the number of neutrons or protons in strongly bound and exceptionally stable atomic nuclei. The existence of such stable nuclei is explained by assuming a shell structure for nucleons, much like the shell structure of electron orbitals around the nucleus. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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