antimatter
[ an-tee-mat-er, an-tahy- ]
/ ˈæn tiˌmæt ər, ˈæn taɪ- /
noun Physics.
matter composed only of antiparticles, especially antiprotons, antineutrons, and positrons.
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Words nearby antimatter
antimalarial, antimanic, Anti-Mason, Anti-Masonic party, antimasque, antimatter, antimension, antimere, antimeridian, antimetabolite, antimicrobial
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for antimatter
The antimatter particle’s electric charge is the opposite of its matter kin.
The exotic ‘atom’ positronium surprises scientists|Emily Conover|September 23, 2020|Science News For StudentsInstead, dark matter is its own antimatter, so any pair of particles that meet will destroy each other.
Still No Dark Matter from Space Station Experiment|Matthew R. Francis|September 21, 2014|DAILY BEASTOn the average, one atom out of every ten million in the universe was an atom of antimatter.
Psichopath|Gordon Randall GarrettThe distribution was unequal of course; antimatter could not exist in contact with ordinary matter.
Psichopath|Gordon Randall Garrett
British Dictionary definitions for antimatter
antimatter
/ (ˈæntɪˌmætə) /
noun
a form of matter composed of antiparticles, such as antihydrogen, consisting of antiprotons and positrons
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 antimatter
antimatter
[ ăn′tĭ-măt′ər ]
A form of matter that consists of antiparticles.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for antimatter
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.