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.
Einstein's general theory of relativity, meanwhile, describes gravity and the behavior of space and time on much larger scales, including planets, stars, galaxies and even the universe itself.
From Science Daily ● Sep. 11, 2026
The concept of electromagnetic radiation originated with him and is credited as paving the way for Einstein's special theory of relativity.
From BBC ● Sep. 4, 2026
The star, named S301, orbits so dangerously close to the black hole that scientists believe it can shed light on this unimaginably powerful cosmic monster -- and test out Albert Einstein's theory of relativity.
From Barron's ● Aug. 20, 2026
Then in 1915, Einstein used these ideas to build his general theory of relativity, describing gravity as curvature in the fabric of space-time.
From Slate ● Jun. 22, 2026
This was true even of the special theory of relativity.
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.
