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Grand unified theory - 4 dictionary results
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grand unification theory

 
–noun Physics.
a possible future quantum field theory that would encompass both the electroweak theory and quantum chromodynamics. Abbreviation: GUT
Also called grand unified theory.

Origin:
1980–85
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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grand unified theory  
n.   Abbr. GUT
A theory of elementary forces that unites the weak, strong, electromagnetic, and gravitational interactions into one field theory and views the known interactions as low-energy manifestations of a single unified interaction.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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grand unified theory   (grānd)  Pronunciation Key 
See unified field theory.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Grand Unified Theory (GUT)

A theory that describes the behavior of matter at temperatures that existed only in the first fraction of a second after the Big Bang. In these theories, the strong, weak, and electromagnetic forces are unified. The greatest triumph of GUTs is that they explain the absence of antimatter in the universe. (See also unified field theory.)


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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