from The American Heritage® Dictionary of the English Language, 4th Edition
- n. 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.
from the GNU version of the Collaborative International Dictionary of English
- n. Any of a class of physics theories that attempts to explain the electroweak forces, stong force, and gravitation within a single mathematical conceptual scheme. In the 1990's string theory and superstring theory were prominent examples. Abbreviated GUT, plural GUTs.
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