theory of relativity
Americannoun
Etymology
Origin of theory of relativity
First recorded in 1960–65
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
None of this endangers the mathematical theory of relativity or the empirical science that confirms it.
From Science Daily • Jun. 8, 2026
This streamlined version—co-written with Leonard Mlodinow, a physicist and popular-science author—retains explanations of vital topics, such as the curvature of spacetime and Einstein’s theory of relativity, but dispenses with the drier sections.
From The Wall Street Journal • May 19, 2026
Einstein's theory of relativity replaced that classical model, and quantum mechanics transformed it yet again.
From Science Daily • Nov. 10, 2025
For over a century, Einstein's general theory of relativity has been the foundation of our understanding of space and time.
From Science Daily • Nov. 8, 2025
The theory of relativity limits the maximum difference in the velocities of the matter particles in the star to the speed of light.
From "A Brief History of Time: And Other Essays" by Stephen Hawking
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
