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A form of matter that is identical to ordinary matter except that it is composed of antielectrons (positrons), antiprotons, and antineutrons.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(General Physics) a form of matter composed of antiparticles, such as antihydrogen, consisting of antiprotons and positrons
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
an•ti•mat•ter(ˈæn tiˌmæt ər, ˈæn taɪ-)
matter composed only of antiparticles.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
A form of matter identical to ordinary matter except that its atoms have opposite electrical charges or magnetic characteristics.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||antimatter - matter consisting of elementary particles that are the antiparticles of those making up normal substances|
matter - that which has mass and occupies space; "physicists study both the nature of matter and the forces which govern it"
antiparticle - a particle that has the same mass as another particle but has opposite values for its other properties; interaction of a particle and its antiparticle results in annihilation and the production of radiant energy
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
antimatter[ˈæntɪˌmætəʳ] N → antimateria f
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
antimatter[ˈæntimætər] n → antimatière f
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
antimatter[ˈæntɪˌmætəʳ] n → antimateria
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995