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
According to Einstein's theory of relativity, gravity alters the flow of time.
From Science Daily • Dec. 30, 2025
Albert Einstein expanded on this in 1916, describing gravitational waves as ripples in the fabric of space-time in his general theory of relativity.
From Science Daily • Oct. 18, 2025
And so she chattered easily and knowledgeably about things of interest to students—this new theory of relativity by a man called Einstein, and whether Admiral Peary would really reach the North Pole.
From "The Hiding Place" by Corrie ten Boom
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.
