particle physics

the branch of physics that deals with the properties and behavior of elementary particles.

1945–50 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
particle physics
Also called: high-energy physics the study of fundamental particles and their properties

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
particle physics  
The branch of physics that deals with subatomic particles. See also quantum field theory, quantum mechanics.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

particle physics definition

The branch of science devoted to the study of the basic constituents of matter, particularly the constituents of the atomic nucleus.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
EG a particle physicist will have a much more relevant opinion of particle
  physics than would a brick layer.
There is no end to the inventiveness that has become part of the subculture of
  particle physics.
His reputation, before he made his splash in climate science, was based on his
  work in particle physics and astrophysics.
It's because particle physics is a game of statistics, and even a
  non-conclusive result can be pretty interesting.
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