grand unified theory

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

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World English Dictionary
grand unified theory
 
n
physics GUT any of a number of theories of elementary particles and fundamental interactions designed to explain the gravitational, electromagnetic, strong, and weak interactions in terms of a single mathematical formalism

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Science Dictionary
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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Cultural Dictionary
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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