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relativity theory

   Also found in: Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
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Noun1.relativity theoryrelativity theory - (physics) the theory that space and time are relative concepts rather than absolute concepts
Einstein's theory of relativity, relativity, theory of relativity
scientific theory - a theory that explains scientific observations; "scientific theories must be falsifiable"
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
Einstein's general theory of relativity, general relativity, general relativity theory, general theory of relativity - a generalization of special relativity to include gravity (based on the principle of equivalence)
Einstein's special theory of relativity, special relativity, special relativity theory, special theory of relativity - a physical theory of relativity based on the assumption that the speed of light in a vacuum is a constant and the assumption that the laws of physics are invariant in all inertial systems
event - a phenomenon located at a single point in space-time; the fundamental observational entity in relativity theory
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