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.
Cosmologists use Einstein's general theory of relativity along with the Friedmann equations to describe how the universe changes over time.
From Science Daily • Jan. 11, 2026
Then, Albert Einstein solved the tension by coming up with the theory of relativity, which explains how massive objects cause distortions in spacetime.
From Salon • Dec. 9, 2024
High-energy muons traveling at near–light-speed endure longer, for milliseconds, because of the time dilation predicted by Einstein’s theory of relativity.
From Science Magazine • Mar. 27, 2024
Here, the theory goes, all physical laws, including Einstein's general theory of relativity, no longer apply; the principle of causality is suspended.
From Science Daily • Feb. 15, 2024
Einstein’s general theory of relativity predicted a slightly different motion from Newton’s theory.
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.
