WordReference Random House Unabridged Dictionary of American English © 2025
the′ory of relativ′ity, [Physics.]
  1. Physicsrelativity (def. 2).
  • 1960–65

'theory of relativity' also found in these entries (note: many are not synonyms or translations):
Eddington - Einstein - Einsteinian - Laue - Lorentz transformation - Minkowski - classical - general theory of relativity - mass - relativistic - relativistic quantum mechanics - relativity - special theory of relativity - theory - time - unified field theory

Forum discussions with the word(s) "theory of relativity" in the title:


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