What does special theory of relativity mean?
• SPECIAL THEORY OF RELATIVITY (noun) The noun SPECIAL THEORY OF RELATIVITY has 1 sense: 1. 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 Familiarity information: SPECIAL THEORY OF RELATIVITY used as a noun is very rare.