Definition of grand unified theory in US English:
grand unified theory
nounɡrænd ˈjunəˌfaɪd ˈθɪəri
Physics A theory attempting to give a single explanation of the strong, weak, and electromagnetic interactions between subatomic particles.
Example sentencesExamples
- Scientists had believed that once the shortcomings of particle physics had been left behind by the adoption of the exotic string theory, that a grand unified theory of everything would be an easily ascertainable goal.
- Science still seeks for a grand unified theory.
- In the latter stages it describes the structure of the cosmos in terms of galaxies and clusters, and ponders on matters such as whether a grand unified theory of everything can be created.
- Like physicists who are trying to make sense of the particles and forces that make up the physical world, knot theorists are looking for something akin to a grand unified theory that would explain all invariants and all knots.