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twin paradox

a phenomenon predicted by relativity. One of a pair of identical twins is supposed to live normally in an inertial system whilst the other is accelerated to a high speed in a spaceship, travels for a long time, and finally returns to rest beside his twin. The travelled twin will be found to be younger than his brother
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Contemporary definitions for twin paradox

a legal case in which the criminal defendant's behavior is attributed to diminished mental capacity caused by a diet of too much sugar; by extension, any defense seeking to excuse someone's behavior by evading responsibility

Word Origin

as from eating Twinkies, a snack food's 21st Century Lexicon
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twin paradox in Culture

twin paradox definition

An effect predicted by the general theory of relativity: if one of a pair of twins remains on Earth, and the other travels in a rocket at a speed near the speed of light, the traveling twin will be younger than the earthbound twin upon returning to Earth. This effect has been verified experimentally by measurements with atomic clocks.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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