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American
[tahym-dahy-lay-shuhn]
/ ˈtaɪm daɪˈleɪ ʃən /
noun
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Physics.
a difference in the rate at which time passes for one observer compared with another, depending on their relative motion or locations, especially where differing gravitational influences are present.
noun
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the principle predicted by relativity that time intervals between events in a system have larger values measured by an observer moving with respect to the system than those measured by an observer at rest with respect to it
"Collins English Dictionary — Complete & Unabridged"
2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986
© HarperCollins Publishers 1998, 2000, 2003, 2005,
2006, 2007, 2009, 2012
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The relativistic effect of the slowing of a clock with respect to an observer. In Special Relativity, a clock moving with respect to an observer appears to run more slowly than to an observer moving with the clock. In General Relativity, time dilation is also caused by gravity; clocks on the earth's surface, for example, run more slowly than clocks at high altitudes, where gravitational forces are weaker.
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In physics, the apparent slowing down of moving clocks that is predicted by the special theory of relativity. Time dilation is well verified experimentally.
Example Sentences
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Time itself passes differently at such distances -- a phenomenon known as cosmological time dilation.
From
Science Daily
Caffeine has a time dilation on it so it could be hours that I’m in there or 30 minutes.
From
Los Angeles Times
Time dilation is a common experience of societies and individuals experiencing great stress.
From
Salon
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
Since the wave experiences a time that is different from the laboratory time, the researchers found that accelerating waves also experience time dilation and length contraction.
From
Science Daily
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.